{"id":10562,"date":"2022-06-04T14:53:52","date_gmt":"2022-06-04T12:53:52","guid":{"rendered":"https:\/\/www.fipwarriors.eu\/?p=10562"},"modified":"2023-03-29T09:49:02","modified_gmt":"2023-03-29T07:49:02","slug":"klinicke-a-molekularne-suvislosti-medzi-covid-19-a-macacou-infekcnou-peritonitidou-fip","status":"publish","type":"post","link":"https:\/\/www.fipwarriors.eu\/en\/klinicke-a-molekularne-suvislosti-medzi-covid-19-a-macacou-infekcnou-peritonitidou-fip\/","title":{"rendered":"Clinical and molecular links between COVID-19 and feline infectious peritonitis (FIP)"},"content":{"rendered":"<p class=\"has-small-font-size\">Arjun N. Sweet, Nicole M. Andr&eacute;, Alison E. Stout, Beth N. Licitra  and Gary R. Whittaker<br>Julia A. Beatty, Academic Editor and S&eacute;verine Tasker, Academic Editor<\/p>\n\n\n\n<p class=\"has-small-font-size\">P&ocirc;vodn&yacute; &#269;l&aacute;nok: <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC8954060\/\" target=\"_blank\" rel=\"noreferrer noopener\">Clinical and Molecular Relationships between COVID-19 and Feline Infectious Peritonitis (<\/a><a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Infek&#269;n&aacute; peritonit&iacute;da ma&#269;iek (angl. Feline infectious peritonitis, zau&#382;&iacute;van&aacute; skratka FIP) je infek&#269;n&eacute; ochorenie ma&#269;iek sp&ocirc;sobuj&uacute;ce smr&#357;. N&aacute;zov je mierne zav&aacute;dzaj&uacute;ci, preto&#382;e nejde o z&aacute;pal pobru&scaron;nice (&#269;i&#382;e peritonea), ale o z&aacute;pal ciev (vaskulit&iacute;da). Klinick&eacute; pr&iacute;znaky FIP sa v&scaron;ak &#269;asto prejavuj&uacute; vo forme z&aacute;palu pobru&scaron;nice. V&iacute;rus FIP nap&aacute;da v&scaron;ak aj pohrudnicu &ndash; z toho d&ocirc;vodu je niekedy choroba ozna&#269;ovan&aacute; tie&#382; ako Infek&#269;n&aacute; ma&#269;acia polyserozit&iacute;da (Feline infectious polyserositis).&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/fip\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">FIP<\/a>)<\/p>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\" id=\"abstract-1title\">Abstrakt<\/h2>\n\n\n\n<p id=\"__p1\">V&yacute;skyt &#357;a&#382;k&eacute;ho ak&uacute;tneho respira&#269;n&eacute;ho syndr&oacute;mu 2 (SARS-CoV-2) viedol lek&aacute;rsku a vedeck&uacute; komunitu k rie&scaron;eniu ot&aacute;zok t&yacute;kaj&uacute;cich sa patogen&eacute;zy a klinickej prezent&aacute;cie COVID-19; relevantn&eacute; klinick&eacute; modely okrem &#318;ud&iacute; v&scaron;ak st&aacute;le ch&yacute;baj&uacute;. U ma&#269;iek sa m&ocirc;&#382;e v&scaron;adepr&iacute;tomn&yacute; koronav&iacute;rus, popisovan&yacute; ako ma&#269;ac&iacute; koronav&iacute;rus (FCoV), prejavova&#357; ako ma&#269;acia infek&#269;n&aacute; peritonit&iacute;da (FIP) &ndash; hlavn&aacute; pr&iacute;&#269;ina &uacute;mrtnosti mlad&yacute;ch ma&#269;iek, ktor&aacute; je charakterizovan&aacute; ako &#357;a&#382;k&yacute; syst&eacute;mov&yacute; z&aacute;pal. R&ocirc;znorod&eacute; mimop&#318;&uacute;cne pr&iacute;znaky FIP a r&yacute;chlo progreduj&uacute;ci priebeh ochorenia spolu s bl&iacute;zkym etiologick&yacute;m agensom predstavuj&uacute; ur&#269;it&yacute; stupe&#328; prekr&yacute;vania s COVID-19. Tento &#269;l&aacute;nok sa zaober&aacute; molekul&aacute;rnymi a klinick&yacute;mi vz&#357;ahmi medzi FIP a COVID-19. Aj ke&#271; medzi t&yacute;mito dvoma syndr&oacute;mami existuj&uacute; k&#318;&uacute;&#269;ov&eacute; rozdiely, tieto podobnosti podporuj&uacute; &#271;al&scaron;ie sk&uacute;manie ma&#269;ac&iacute;ch koronav&iacute;rusov ako prirodzene sa vyskytuj&uacute;ceho klinick&eacute;ho modelu pre koronav&iacute;rusov&eacute; ochorenie u &#318;ud&iacute;.<\/p>\n\n\n\n<p id=\"__p1\"><strong>K&#318;&uacute;&#269;ov&eacute; slov&aacute;:&nbsp;<\/strong>ma&#269;acia infek&#269;n&aacute; peritonit&iacute;da, SARS-CoV-2, COVID-19, ma&#269;ky<\/p>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\" id=\"sec1-viruses-14-00481title\">1. &Uacute;vod<\/h2>\n\n\n\n<p id=\"__p2\">V 60. rokoch 20. storo&#269;ia bola op&iacute;san&aacute; ma&#269;acia infek&#269;n&aacute; peritonit&iacute;da (FIP) ako ochorenie dom&aacute;cich ma&#269;iek a n&aacute;sledne sa zistilo, &#382;e ide o v&iacute;rusov&uacute; etiol&oacute;giu, konkr&eacute;tne o ma&#269;ac&iacute; koronav&iacute;rus (FCoV) <sup>[1,2]<\/sup>. U v&auml;&#269;&scaron;iny ma&#269;iek m&aacute; infekcia v&iacute;rusom FCoV za n&aacute;sledok mierne a&#382; nev&yacute;razn&eacute; klinick&eacute; pr&iacute;znaky, av&scaron;ak u malej &#269;asti ma&#269;iek sa vyvinie z&aacute;va&#382;n&eacute; ochorenie a pod&#318;ahn&uacute; syst&eacute;movej forme ochorenia, zn&aacute;mej ako FIP [3]. V priebehu rokov od objavenia FCoV zostali mnoh&eacute; znaky FCoV nepochopen&eacute;. Podobne pand&eacute;mia COVID-19, sp&ocirc;soben&aacute; v&yacute;skytom SARS-CoV-2, nastolila mnoho rovnako n&aacute;ro&#269;n&yacute;ch ot&aacute;zok t&yacute;kaj&uacute;cich sa patogen&eacute;zy, prenosnosti a lie&#269;by. Rozsiahly prenos FCoV\/SARS-CoV-2 a nen&aacute;padn&yacute; n&aacute;stup z&aacute;va&#382;n&yacute;ch pr&iacute;znakov v pr&iacute;pade FIP aj COVID-19 obmedzuje mo&#382;nos&#357; v&#269;asn&eacute;ho odhalenia ochorenia &ndash; to, &#269;o m&ocirc;&#382;e za&#269;a&#357; len ako mierne alebo dokonca nev&yacute;razn&eacute; klinick&eacute; pr&iacute;znaky alebo sympt&oacute;my, m&ocirc;&#382;e r&yacute;chlo vies&#357; k syst&eacute;mov&eacute;mu ochoreniu <sup>[3,4]<\/sup>. Domnievame sa, &#382;e FIP m&ocirc;&#382;e predstavova&#357; cenn&yacute;, prirodzene sa vyskytuj&uacute;ci mimop&#318;&uacute;cny model COVID-19.<\/p>\n\n\n\n<p id=\"__p3\">FCoV aj SARS-CoV-2 patria do &#269;e&#318;ade Coronaviridae <sup>[4,5]<\/sup>, aj ke&#271; do r&ocirc;znych rodov (obr&aacute;zok 1). FCoV spolu s podobn&yacute;mi &#382;ivo&#269;&iacute;&scaron;nymi koronav&iacute;rusmi, ako je ps&iacute; koronav&iacute;rus (CCoV) a v&iacute;rus prenosnej gastroenterit&iacute;dy (TGEV) u o&scaron;&iacute;pan&yacute;ch, patria do rodu alfakoronav&iacute;rusov. Do rodu alfakoronav&iacute;rusov sa zara&#271;uj&uacute; aj komunitn&eacute; respira&#269;n&eacute; (CAR) &#318;udsk&eacute; koronav&iacute;rusy 229E a NL63 <sup>[6]<\/sup>, pri&#269;om druh&yacute; menovan&yacute; sa sp&aacute;ja s be&#382;n&yacute;m prechladnut&iacute;m, krupom a pr&iacute;padne Kawasakiho chorobou u det&iacute; <sup>[7]<\/sup>. Naproti tomu SARS-CoV-2 spolu so SARS-CoV ( p&ocirc;vodca vypuknutia &#357;a&#382;k&eacute;ho ak&uacute;tneho respira&#269;n&eacute;ho syndr&oacute;mu v rokoch 2002 &ndash; 2003) a koronav&iacute;rusom bl&iacute;zkov&yacute;chodn&eacute;ho respira&#269;n&eacute;ho syndr&oacute;mu (MERS-CoV) patria do rodu betakoronav&iacute;rusov <sup>[8]<\/sup>, pri&#269;om SARS-CoV-2 a SARS-CoV patria do l&iacute;nie B (sarbecov&iacute;rus) a MERS-CoV do l&iacute;nie C (merbecov&iacute;rus). Medzi menej pr&iacute;buzn&eacute; betakoronav&iacute;rusy patr&iacute; &#318;udsk&yacute; koronav&iacute;rus CAR OC43 (spojen&yacute; s be&#382;n&yacute;m prechladnut&iacute;m), v&iacute;rus my&scaron;ej hepatit&iacute;dy (MHV) a bovinn&yacute; koronav&iacute;rus, ktor&yacute; je spojen&yacute; so z&aacute;palom p&#318;&uacute;c a hna&#269;kou u hov&auml;dzieho dobytka; tieto v&iacute;rusy s&uacute; v l&iacute;nii A (embekov&iacute;rus).<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC8954060\/figure\/viruses-14-00481-f001\/\"><\/a><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><a href=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/covid-vs-fip-0.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"731\" height=\"440\" src=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/covid-vs-fip-0.jpg\" alt=\"\" class=\"wp-image-10616\" title=\"Click on image to zoom\" srcset=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/covid-vs-fip-0.jpg 731w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/covid-vs-fip-0-300x181.jpg 300w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/covid-vs-fip-0-18x12.jpg 18w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/covid-vs-fip-0-350x211.jpg 350w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/covid-vs-fip-0-64x39.jpg 64w\" sizes=\"auto, (max-width: 731px) 100vw, 731px\"\/><\/a><figcaption><strong>Obr&aacute;zok 1<\/strong><br>Fylogenetick&yacute; strom hrotov&yacute;ch prote&iacute;nov vybran&yacute;ch koronav&iacute;rusov. Fylogenetick&yacute; strom maxim&aacute;lnej vierohodnosti bol zostrojen&yacute; pomocou programu MEGAX (100 bootstrapov) z viacn&aacute;sobn&eacute;ho zarovnania sekvenci&iacute; hrotov&yacute;ch prote&iacute;nov. Hrotov&eacute; sekvencie aminokysel&iacute;n boli z&iacute;skan&eacute; z GenBank NCBI. Pr&iacute;slu&scaron;n&eacute; &#269;&iacute;sla s&uacute;: v&iacute;rus transmis&iacute;vnej gastroenterit&iacute;dy\/TGEV (P07946), koronav&iacute;rus &#357;a&#382;k&eacute;ho ak&uacute;tneho respira&#269;n&eacute;ho syndr&oacute;mu 2\/SARS-CoV-2 (YP_009724390.1), koronav&iacute;rus bl&iacute;zkov&yacute;chodn&eacute;ho respira&#269;n&eacute;ho syndr&oacute;mu\/MERS-CoV(AFS88936. 1), v&iacute;rus hepatit&iacute;dy my&scaron;&iacute;\/MHV-1 (ACN89742), koronav&iacute;rus &#357;a&#382;k&eacute;ho ak&uacute;tneho respira&#269;n&eacute;ho syndr&oacute;mu\/SARS-CoV (AAT74874.1), koronav&iacute;rus ma&#269;iek\/FCoV-Black (EU186072. 1), bovinn&yacute; koronav&iacute;rus\/BCoV (P15777), ps&iacute; koronav&iacute;rus\/CCoV (AY436637.1), &#318;udsk&yacute; koronav&iacute;rus\/HCoV-OC43(NC_006213.1), HCoV-229E(NC_002645.1) a HCoV-229E(NC_002645.1).<\/figcaption><\/figure><\/div>\n\n\n\n<p id=\"__p4\">FCoV mo&#382;no klasifikova&#357; dvoma sp&ocirc;sobmi, pri&#269;om prv&yacute; sa t&yacute;ka formy ochorenia. Ma&#269;ac&iacute; enterick&yacute; koronav&iacute;rus (FECV) sa pova&#382;uje za p&ocirc;vodcu miernej gastrointestin&aacute;lnej formy ochorenia, zatia&#318; &#269;o v&iacute;rus ma&#269;acej infek&#269;nej peritonit&iacute;dy (FIPV) sa sp&aacute;ja so smrte&#318;nou syst&eacute;movou infekciou zn&aacute;mou ako FIP <sup>[3]<\/sup>. FIPV sa od FECV odli&scaron;uje svojou schopnos&#357;ou infikova&#357; a &uacute;&#269;inne sa replikova&#357; v monocytoch a makrof&aacute;goch <sup>[9]<\/sup>, &#269;&iacute;m vyvol&aacute;va syst&eacute;mov&yacute; z&aacute;pal. FIPV sa sp&aacute;ja so spektrom klinick&yacute;ch n&aacute;sledkov. Na jednom konci spektra je efuz&iacute;vna alebo &bdquo;mokr&aacute;&ldquo; FIP, ktor&aacute; r&yacute;chlo progreduje a zah&#341;&#328;a hromadenie vysoko prote&iacute;nov&eacute;ho exsud&aacute;tu v bru&scaron;nej a\/alebo hrudnej dutine. Na druhej strane spektra je neefuz&iacute;vna alebo &bdquo;such&aacute;&ldquo; FIP, ktor&aacute; m&ocirc;&#382;e postihn&uacute;&#357; mnoh&eacute; org&aacute;nov&eacute; syst&eacute;my, ale zvy&#269;ajne sa vyzna&#269;uje neurologick&yacute;mi a o&#269;n&yacute;mi pr&iacute;znakmi. Nefuz&iacute;vna FIP m&aacute; vo v&scaron;eobecnosti zd&#314;havej&scaron;&iacute; priebeh ochorenia a je menej &#269;ast&aacute; ako jej efuz&iacute;vny n&aacute;protivok. FCoV mo&#382;no tie&#382; rozdeli&#357; na dva s&eacute;rotypy &ndash; typ I alebo typ II &ndash; na z&aacute;klade hlavn&yacute;ch rozdielov v hrotovom prote&iacute;ne v&iacute;rusu, ktor&eacute; ovplyv&#328;uj&uacute; v&auml;zbu na receptor a odpove&#271; protil&aacute;tok <sup>[10]<\/sup>. Receptorom pre FCoV typu II je ma&#269;acia aminopeptid&aacute;za N (fAPN) <sup>[11]<\/sup>, zatia&#318; &#269;o receptor pre v&iacute;rusy typu I nie je identifikovan&yacute;. Typ I FCoV predstavuje preva&#382;n&uacute; v&auml;&#269;&scaron;inu pr&iacute;padov FIP<sup> [12]<\/sup>.<\/p>\n\n\n\n<p id=\"__p5\">Klasifik&aacute;cia v&iacute;rusu SARS-CoV-2 na r&ocirc;zne varianty na z&aacute;klade genetick&yacute;ch mut&aacute;ci&iacute; st&aacute;le prebieha, preto&#382;e v&iacute;rus sa na&#271;alej vyv&iacute;ja. V&iacute;rusov&eacute; l&iacute;nie, ktor&eacute; vykazuj&uacute; potenci&aacute;l zv&yacute;&scaron;enej prenosnosti, odolnosti vo&#269;i lie&#269;be, odolnosti vo&#269;i vakc&iacute;nam alebo zv&yacute;&scaron;enej chorobnosti a &uacute;mrtnosti, boli ozna&#269;en&eacute; ako varianty vzbudzuj&uacute;ce obavy (VOC). Spektrum ochoren&iacute; spojen&yacute;ch s COVID-19 je &scaron;irok&eacute; a siaha od asymptomatick&yacute;ch a miernych infekci&iacute; a&#382; po syndr&oacute;m ak&uacute;tnej respira&#269;nej tiesne (ARDS), syndr&oacute;m syst&eacute;movej z&aacute;palovej reakcie (SIRS) a multiorg&aacute;nov&eacute; zlyhanie a smr&#357;. Syst&eacute;mov&yacute; z&aacute;pal pri SARS-CoV-2 nie je spojen&yacute; s makrof&aacute;gmi a monocytmi (ako pri FIP), ale zodpoved&aacute; za &scaron;irok&uacute; &scaron;k&aacute;lu mimop&#318;&uacute;cnych pr&iacute;znakov. Zd&aacute; sa, &#382;e sa na tom podie&#318;a receptor SARS-CoV-2, angiotenz&iacute;n konvertuj&uacute;ci enz&yacute;m-2 (ACE-2), ktor&yacute; zohr&aacute;va d&ocirc;le&#382;it&uacute; &uacute;lohu v syst&eacute;me ren&iacute;n-angiotenz&iacute;n a rozvoji proz&aacute;palov&eacute;ho stavu <sup>[13]<\/sup>. Multisyst&eacute;mov&yacute; z&aacute;palov&yacute; syndr&oacute;m (MIS) det&iacute; a dospel&yacute;ch, ako aj postak&uacute;tny priebeh infekcie SARS-CoV-2 (PASC), zn&aacute;my aj ako &bdquo;dlh&yacute; COVID&ldquo;, s&uacute; potenci&aacute;lnymi d&ocirc;sledkami infekcie COVID-19.<\/p>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\" id=\"sec2-viruses-14-00481title\">2. Prenos<\/h2>\n\n\n\n<p id=\"__p6\">Ako skupina s&uacute; koronav&iacute;rusy zn&aacute;me svojou schopnos&#357;ou sp&ocirc;sobova&#357; respira&#269;n&eacute; aj &#269;revn&eacute; ochorenia a zvy&#269;ajne sa pren&aacute;&scaron;aj&uacute; jednou alebo obidvomi cestami. Zatia&#318; &#269;o FCoV sa pova&#382;uje za fek&aacute;lno-or&aacute;lny a SARS-CoV-2 je prim&aacute;rne respira&#269;n&yacute;, pacienti s COVID-19 m&ocirc;&#382;u vylu&#269;ova&#357; infek&#269;n&yacute; v&iacute;rus v stolici <sup>[14]<\/sup>, &#269;asto po dlh&scaron;iu dobu, a FCoV m&ocirc;&#382;e &#318;ahko infikova&#357; oronas&aacute;lnou cestou, &#269;o je be&#382;n&aacute; met&oacute;da pokusn&eacute;ho o&#269;kovania ma&#269;iek <sup>[15]<\/sup>.<\/p>\n\n\n\n<p id=\"__p7\">Vo v&auml;&#269;&scaron;ine pr&iacute;padov je infekcia FCoV samoobmedzuj&uacute;ca, a hoci v&iacute;rus mo&#382;no detekova&#357; syst&eacute;movo, replik&aacute;cia mimo &#269;revn&eacute;ho epitelu je slab&aacute;. T&aacute;to forma v&iacute;rusu, ozna&#269;ovan&aacute; ako FECV, je &#318;ahko prenosn&aacute; fek&aacute;lno-or&aacute;lnou\/oronas&aacute;lnou cestou, pri&#269;om be&#382;n&yacute;mi zdrojmi infekcie s&uacute; spolo&#269;n&eacute; koterce a prehltnutie v&iacute;rusov&yacute;ch &#269;ast&iacute;c pri &#269;isten&iacute;. S&uacute;&#269;asn&eacute; ch&aacute;panie rozvoja FIP zah&#341;&#328;a vn&uacute;torn&uacute; mut&aacute;ciu: v malej podskupine pr&iacute;padov FECV vedie komplexn&aacute; kombin&aacute;cia hostite&#318;sk&yacute;ch a v&iacute;rusov&yacute;ch faktorov k mut&aacute;cii (mut&aacute;ci&aacute;m), ktor&aacute; umo&#382;&#328;uje &uacute;&#269;inn&uacute; replik&aacute;ciu v makrof&aacute;goch a monocytoch <sup>[16]<\/sup>. Tieto let&aacute;lne varianty sa klasifikuj&uacute; ako FIPV a sp&aacute;jaj&uacute; sa so syst&eacute;mov&yacute;m z&aacute;palom, zlyhan&iacute;m org&aacute;nov a smr&#357;ou. FIPV sa vo v&scaron;eobecnosti pova&#382;uje za neprenosn&yacute;, preto&#382;e faktory, ktor&eacute; zvy&scaron;uj&uacute; jeho <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;afinita &#269;i pohyb k nie&#269;omu, preferencie &#269;i zameranie k ur&#269;itej &scaron;trukt&uacute;re alebo org&aacute;nu. Tropizmus charakterizuje niektor&eacute; v&iacute;rusy, napr. lymfotropismus EB v&iacute;rus, neurotropizmus v&iacute;rus japonskej encefalit&iacute;dy.&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/tropismus\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">tropizmus<\/a> na <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Makrof&aacute;g je bu&#328;ka p&#345;irozen&eacute; imunity, kter&aacute; hraje velmi d&#367;le&#382;itou roli v imunitn&iacute; reakci. Jedn&aacute; se o z&aacute;stupce mononukle&aacute;r&#367;, tj. bun&#283;k s jedn&iacute;m, nesegmentovan&yacute;m j&aacute;drem.Makrof&aacute;g vznik&aacute; p&#345;em&#283;nou z monocyt&#367;. Ty jsou tvo&#345;eny v kostn&iacute; d&#345;eni z kmenov&eacute; hemopoetick&eacute; bu&#328;ky a jsou vyplavov&aacute;ny do krevn&iacute;ho ob&#283;hu. Monocyty koluj&iacute; v krvi asi 8 hodin, pot&eacute; vstupuj&iacute; do tk&aacute;n&iacute; a tam se m&#283;n&iacute; na makrof&aacute;gy. Tk&aacute;&#328;ov&eacute; makrof&aacute;gy pak vykazuj&iacute; &#269;etnou heterogenitu v z&aacute;vislosti na tk&aacute;ni. Mezi tk&aacute;&#328;ov&eacute; makrof&aacute;gy pat&#345;&iacute; Kupfferovy bu&#328;ky, histiocyty, osteoklasty &#269;i mikroglie.Aby se monocyt p&#345;em&#283;nil na makrof&aacute;g, mus&iacute; prob&#283;hnout n&#283;kolik krok&#367;. Zv&#283;t&scaron;uje se velikost bu&#328;ky, zvy&scaron;uje se po&#269;et lysozom&#367;, receptor&#367; pro imunoglobulin IgG a zvy&scaron;uje se jeho schopnost fagocyt&oacute;zy.Z&aacute;kladn&iacute; funkc&iacute; makrof&aacute;gu je fagocyt&oacute;za. K dal&scaron;&iacute;m funkc&iacute;m pat&#345;&iacute; prezentace antigenu T-lymfocyt&#367;m, &#345;&iacute;zen&iacute; hemopo&eacute;zy, hemost&aacute;zy a hojen&iacute; ran, regulace z&aacute;n&#283;tu, destrukce mikroorganism&#367;, odstra&#328;ov&aacute;n&iacute; mrtv&yacute;ch bun&#283;k a cytotoxick&aacute; reakce.&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/makrofag\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">makrof&aacute;gy<\/a>, zrejme obmedzuj&uacute; jeho fek&aacute;lno-or&aacute;lne &scaron;&iacute;renie <sup>[17]<\/sup>. V chovn&yacute;ch staniciach a &uacute;tulkoch boli zaznamenan&eacute; ohnisk&aacute; FIP. V t&yacute;chto situ&aacute;ci&aacute;ch m&ocirc;&#382;e stres z preplnenia a vysok&eacute; hladiny v&iacute;rusu v prostred&iacute; podporova&#357; premenu FECV na FIPV. Existuj&uacute; d&ocirc;kazy, &#382;e niektor&eacute; kmene FCoV m&ocirc;&#382;u by&#357; k tomuto prerodu n&aacute;chylnej&scaron;ie ako in&eacute; <sup>[18,19]<\/sup>.<\/p>\n\n\n\n<p id=\"__p8\">Infekcia v&iacute;rusom SARS-CoV-2 je prim&aacute;rne zameran&aacute; na respira&#269;n&yacute; epitel, ale podobne ako v pr&iacute;pade FCoV sa v&iacute;rus m&ocirc;&#382;e objavi&#357; syst&eacute;movo bez pr&iacute;slu&scaron;n&yacute;ch pr&iacute;znakov infekcie <sup>[20,21]<\/sup>. Asymptomatick&iacute; jedinci s&uacute; dobre zdokumentovan&yacute;m zdrojom SARS-CoV-2 <sup>[22,23,24]<\/sup> a prenos zah&#341;&#328;a inhal&aacute;ciu aeros&oacute;lov aj kontakt s kvap&ocirc;&#269;kami <sup>[25]<\/sup>. Inkuba&#269;n&eacute; doby SARS-CoV-2 a FECV sa pohybuj&uacute; od 2 do 14 dn&iacute; <sup>[26]<\/sup>. Inkuba&#269;n&aacute; doba FIP je ve&#318;mi variabiln&aacute;, ovplyvnen&aacute; &#269;asom do vn&uacute;tornej mut&aacute;cie a imunitnou odpove&#271;ou jedinca. K n&aacute;stupu FIP m&ocirc;&#382;e d&ocirc;js&#357; nieko&#318;ko t&yacute;&#382;d&#328;ov a&#382; mesiacov po po&#269;iato&#269;nej infekcii <sup>[27,28,29,30]<\/sup>. Multisyst&eacute;mov&yacute; z&aacute;palov&yacute; syndr&oacute;m u det&iacute; (MIS-C), z&aacute;va&#382;n&yacute; prejav SARS-CoV-2, sa tie&#382; oneskoruje za po&#269;iato&#269;nou infekciou s medi&aacute;nom n&aacute;stupu 4 t&yacute;&#382;dne. S rozvojom MIS-C neboli spojen&eacute; &#382;iadne v&iacute;rusov&eacute; faktory, ale predpoklad&aacute; sa imunitne sprostredkovan&aacute; zlo&#382;ka.<\/p>\n\n\n\n<p id=\"__p9\">Vertik&aacute;lny prenos FIP prostredn&iacute;ctvom placenty alebo mlieka sa pova&#382;uje za zriedkav&yacute;. V prvej experiment&aacute;lnej &scaron;t&uacute;dii, v ktorej bola infikovan&aacute; doj&#269;iaca ma&#269;ka, jedno zo &scaron;tyroch ma&#269;iatok pod&#318;ahlo FIP <sup>[28]<\/sup>. Zd&aacute; sa, &#382;e matersk&eacute; <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;&amp;lt;!-- wp:paragraph --&amp;gt;&amp;lt;strong&amp;gt;Protil&aacute;tka&amp;lt;\/strong&amp;gt;&nbsp;(&amp;lt;strong&amp;gt;imunoglobulin&amp;lt;\/strong&amp;gt;) je&nbsp;protein, kter&yacute; je schopen jako sou&#269;&aacute;st&nbsp;imunitn&iacute;ho syst&eacute;mu&nbsp;identifikovat a zne&scaron;kodnit ciz&iacute; objekty (bakterie&nbsp;a&nbsp;viry) v t&#283;le. Protil&aacute;tky jsou nositeli&nbsp;humor&aacute;ln&iacute; imunity. Jsou to krevn&iacute; b&iacute;lkoviny vznikaj&iacute;c&iacute; v m&iacute;zn&iacute; tk&aacute;ni.&amp;lt;br\/&amp;gt;&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/protilatka\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">protil&aacute;tky<\/a> &uacute;&#269;inne zabra&#328;uj&uacute; prenosu a&#382; do veku pribli&#382;ne &scaron;iestich t&yacute;&#382;d&#328;ov, ke&#271; sa zni&#382;uj&uacute; hladiny protil&aacute;tok a ma&#269;iatka s&uacute; n&aacute;chyln&eacute; na prenos fek&aacute;lno-or&aacute;lnou cestou <sup>[31]<\/sup>. T&aacute;to <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Imunita v imunologii ozna&#269;uje schopnost organismu br&aacute;nit se proti antigen&#367;m poch&aacute;zej&iacute;c&iacute;m jak z vn&#283;j&scaron;&iacute;ho prost&#345;ed&iacute;, tak z prost&#345;ed&iacute; z pohledu organismu vnit&#345;n&iacute;ho. V praxi se antigeny mysl&iacute; zejm&eacute;na bu&#328;ky patogenn&iacute;ch organizm&#367;, viry &#269;i t&#345;eba n&aacute;dorov&eacute; bu&#328;ky.&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/imunita\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">imunita<\/a> z&iacute;skan&aacute; od matky v&scaron;ak m&ocirc;&#382;e by&#357; prekonan&aacute; v ranom veku vysokou &uacute;rov&#328;ou expoz&iacute;cie FCoV &ndash; &scaron;vaj&#269;iarska &scaron;t&uacute;dia preuk&aacute;zala, &#382;e ma&#269;iatka vo ve&#318;k&yacute;ch chovoch vykazuj&uacute; infekciu vo veku dvoch t&yacute;&#382;d&#328;ov <sup>[32,33]<\/sup>. Vertik&aacute;lny prenos predstavuje pri infekcii SARS-CoV-2 riziko. Placent&aacute;rny prenos je zriedkav&yacute;, ale bol zdokumentovan&yacute; u plodov matiek infikovan&yacute;ch SARS-CoV-2 <sup>[34,35,36]<\/sup>, &#269;o dokazuje detekcia v&iacute;rusu v plodovej vode, krvi novorodenca, pupo&#269;n&iacute;kovej krvi a placent&aacute;rnom tkanive. Pr&iacute;pady prenosu boli zdokumentovan&eacute; na za&#269;iatku aj na konci tehotenstva, ale k infekcii novorodenca v&iacute;rusom SARS-CoV-2 nemus&iacute; v&#382;dy d&ocirc;js&#357; v maternici. K infekcii m&ocirc;&#382;e d&ocirc;js&#357; aj po&#269;as p&ocirc;rodu alebo pri bl&iacute;zkom kontakte s matkou. Neonat&aacute;lne v&yacute;sledky matiek infikovan&yacute;ch COVID-19 zost&aacute;vaj&uacute; na&#271;alej predmetom &scaron;t&uacute;dia, pri&#269;om je problematick&eacute; rozl&iacute;&scaron;i&#357; vplyv infekcie SARS-CoV-2 a komorbid&iacute;t matky. Napriek tomu sa zd&aacute;, &#382;e infekcia novorodencov nie je bez n&aacute;sledkov, pri&#269;om v jednej anal&yacute;ze sa uv&aacute;dza, &#382;e pribli&#382;ne 50 % infikovan&yacute;ch novorodencov vykazuje klinick&eacute; pr&iacute;znaky s&uacute;visiace s COVID-19 vr&aacute;tane hor&uacute;&#269;ky a respira&#269;n&yacute;ch a gastrointestin&aacute;lnych pr&iacute;znakov <sup>[37]<\/sup>.<\/p>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\" id=\"sec3-viruses-14-00481title\">3. V&scaron;eobecn&aacute; klinick&aacute; prezent&aacute;cia<\/h2>\n\n\n\n<p id=\"__p10\">Klinick&eacute; pr&iacute;znaky spojen&eacute; s FIP aj COVID-19 zah&#341;&#328;aj&uacute; hor&uacute;&#269;ku, hna&#269;ku, depresiu, slabos&#357;, anorexiu a dyspnoe <sup>[1]<\/sup>. Typick&yacute; prejav COVID-19 be&#382;ne zah&#341;&#328;a ne&scaron;pecifick&eacute; pr&iacute;znaky vr&aacute;tane hor&uacute;&#269;ky, such&eacute;ho ka&scaron;&#318;a, &uacute;navy, d&yacute;chavi&#269;nosti a myalgie [38]. Anosmia (strata &#269;uchu) a age&uacute;zia (strata chuti) boli tie&#382; &#269;asto hl&aacute;sen&eacute; pri COVID-19 a predstavuj&uacute; &scaron;pecifickej&scaron;ie symptomatick&eacute; ukazovatele ochorenia <sup>[39]<\/sup>. M&ocirc;&#382;e sa vyskytn&uacute;&#357; pneum&oacute;nia, syndr&oacute;m ak&uacute;tnej respira&#269;nej tiesne (ARDS) a sepsa. Zd&aacute; sa, &#382;e mu&#382;i s&uacute; vystaven&iacute; vy&scaron;&scaron;iemu riziku vzniku z&aacute;va&#382;nej&scaron;&iacute;ch prejavov COVID-19 <sup>[40,41]<\/sup>, pri&#269;om nieko&#318;ko mal&yacute;ch &scaron;t&uacute;di&iacute; potvrdzuje rovnak&uacute; s&uacute;vislos&#357; medzi sam&#269;&iacute;m pohlav&iacute;m a vznikom FIP u ma&#269;iek <sup>[42,43]<\/sup>.<\/p>\n\n\n\n<p id=\"__p11\">Klasick&yacute;m prejavom FIP je vznik v&yacute;potku v bru&scaron;nej a\/alebo hrudnej dutine; hoci tento prejav bol zaznamenan&yacute; aj u COVID-19 <sup>[44]<\/sup>, je ve&#318;mi zriedkav&yacute;. Okrem toho sa FIP prejavuje v r&ocirc;znych telesn&yacute;ch syst&eacute;moch, ktor&eacute; maj&uacute; podobnos&#357; s mimop&#318;&uacute;cnymi prejavmi COVID-19 (obr&aacute;zok 2 a obr&aacute;zok 3). Najpodobnej&scaron;&iacute;m znakom oboch ochoren&iacute; je endotelov&aacute; dysfunkcia. Charakteristick&yacute;m znakom patol&oacute;gie FIP je <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;&amp;lt;!-- wp:paragraph --&amp;gt;Vaskulit&iacute;da je v&scaron;eobecn&yacute; n&aacute;zov pre z&aacute;pal ciev. V sten&aacute;ch t&yacute;chto ciev sp&ocirc;sobuje toto ochorenie r&ocirc;zne patologick&eacute; zmeny vr&aacute;tane zhrubnutia, oslabenia, z&uacute;&#382;enia alebo zjazvenia. Pod tento pojem zah&#341;&#328;ame mnoho typov t&yacute;chto z&aacute;palov, ktor&eacute; sa l&iacute;&scaron;ia svojimi prejavmi, pr&iacute;&#269;inami a nebezpe&#269;nos&#357;ou.&amp;lt;br\/&amp;gt;&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/vaskulitida\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">vaskulit&iacute;da<\/a> <sup>[45,46]<\/sup> s l&eacute;ziami charakterizovan&yacute;mi perivaskul&aacute;rnym ed&eacute;mom a infiltr&aacute;ciou, degener&aacute;ciou cievnej steny a prolifer&aacute;ciou endotelu <sup>[47]<\/sup>. V pr&iacute;pade COVID-19 sa predpoklad&aacute;, &#382;e mimop&#318;&uacute;cne pr&iacute;znaky s&uacute; sp&ocirc;soben&eacute; v&iacute;rusom sprostredkovanou endoteliit&iacute;dou, ktor&aacute; vedie k vaskulit&iacute;de, predov&scaron;etk&yacute;m v &#382;il&aacute;ch s mal&yacute;m postihnut&iacute;m arteriol <sup>[48,49].<\/sup> V nasleduj&uacute;cich &#269;astiach pop&iacute;&scaron;eme tieto mimop&#318;&uacute;cne pr&iacute;znaky a pouk&aacute;&#382;eme na k&#318;&uacute;&#269;ov&eacute; podobnosti a rozdiely.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><a href=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/covid-vs-fip-1-2.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"838\" height=\"633\" src=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/covid-vs-fip-1-2.jpg\" alt=\"\" class=\"wp-image-10578\" srcset=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/covid-vs-fip-1-2.jpg 838w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/covid-vs-fip-1-2-300x227.jpg 300w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/covid-vs-fip-1-2-768x580.jpg 768w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/covid-vs-fip-1-2-16x12.jpg 16w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/covid-vs-fip-1-2-350x264.jpg 350w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/covid-vs-fip-1-2-64x48.jpg 64w\" sizes=\"auto, (max-width: 706px) 89vw, (max-width: 767px) 82vw, 740px\"\/><\/a><figcaption><strong>Obr&aacute;zok 2<\/strong><br>S&uacute;hrn syst&eacute;mov&yacute;ch klinick&yacute;ch pr&iacute;znakov a patologick&yacute;ch stavov spojen&yacute;ch s FIP. Je zn&aacute;me, &#382;e FIP je syst&eacute;mov&aacute; infekcia s r&ocirc;znorod&yacute;mi prejavmi. S&uacute; tu zhrnut&eacute; mo&#382;n&eacute; syst&eacute;mov&eacute; klinick&eacute; pr&iacute;znaky spojen&eacute; s FIP, ktor&eacute; zah&#341;&#328;aj&uacute; org&aacute;nov&eacute; syst&eacute;my, ktor&eacute; s&uacute; tie&#382; postihnut&eacute; COVID-19. Naj&#269;astej&scaron;ie pr&iacute;znaky FIP s&uacute; zv&yacute;raznen&eacute; &#269;ervenou farbou.<\/figcaption><\/figure><\/div>\n\n\n\n<p id=\"__p11\"><a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC8954060\/figure\/viruses-14-00481-f002\/\"><\/a><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><a href=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/covid-vs-fip-2-2.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"922\" height=\"514\" src=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/covid-vs-fip-2-2.jpg\" alt=\"\" class=\"wp-image-10581\" title=\"Click on image to zoom\" srcset=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/covid-vs-fip-2-2.jpg 922w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/covid-vs-fip-2-2-300x167.jpg 300w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/covid-vs-fip-2-2-768x428.jpg 768w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/covid-vs-fip-2-2-18x10.jpg 18w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/covid-vs-fip-2-2-350x195.jpg 350w, https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/covid-vs-fip-2-2-64x36.jpg 64w\" sizes=\"auto, (max-width: 706px) 89vw, (max-width: 767px) 82vw, 740px\"\/><\/a><figcaption><strong>Obr&aacute;zok 3<\/strong><br>S&uacute;hrn syst&eacute;mov&yacute;ch klinick&yacute;ch pr&iacute;znakov, sympt&oacute;mov a patol&oacute;gi&iacute; s&uacute;visiacich s COVID-19. Respira&#269;n&eacute; pr&iacute;znaky COVID-19 s&uacute; hlavn&yacute;m prejavom ochorenia. Infekcia SARS-CoV-2 u &#318;ud&iacute; v&scaron;ak m&ocirc;&#382;e ma&#357; za n&aacute;sledok aj r&ocirc;zne mimop&#318;&uacute;cne pr&iacute;znaky. S&uacute; tu zhrnut&eacute; syst&eacute;mov&eacute; klinick&eacute; pr&iacute;znaky a sympt&oacute;my spojen&eacute; s COVID-19, ktor&eacute; zah&#341;&#328;aj&uacute; org&aacute;nov&eacute; syst&eacute;my, ktor&eacute; s&uacute; tie&#382; postihnut&eacute; FIP. Naj&#269;astej&scaron;ie pr&iacute;znaky COVID-19 s&uacute; zv&yacute;raznen&eacute; &#269;ervenou farbou. ARDS znamen&aacute; syndr&oacute;m ak&uacute;tnej respira&#269;nej tiesne.<\/figcaption><\/figure><\/div>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\" id=\"sec4-viruses-14-00481title\">4. Biomarkery<\/h2>\n\n\n\n<p id=\"__p12\">Z&aacute;palov&eacute; biomarkery s&uacute; v&yacute;znamn&eacute; ako prognostick&eacute; ukazovatele v pr&iacute;pade COVID-19 a ako prostriedok na odl&iacute;&scaron;enie FIP od in&yacute;ch ochoren&iacute;. Pri FIP sa zd&aacute;, &#382;e expresia IL-6 je zv&yacute;&scaron;en&aacute; v ascitickej tekutine ma&#269;iek infikovan&yacute;ch FIP, pravdepodobne prostredn&iacute;ctvom zv&yacute;&scaron;enej expresie v srdci a pe&#269;eni <sup>[50,51]<\/sup>. Pri infekcii FIP s&uacute; zv&yacute;&scaron;en&eacute; aj in&eacute; prote&iacute;ny ak&uacute;tnej f&aacute;zy. Alfa-1-kysl&yacute; glykoprote&iacute;n (<a class=\"glossaryLink\"  aria-describedby=\"tt\"  data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Alfa-1-kysl&yacute; glykoprote&iacute;n patr&iacute; k reaktantom ak&uacute;tnej f&aacute;zy.  Alfa-1-kysl&yacute; glykoprote&iacute;n pomal&scaron;&iacute; n&aacute;stup a zost&aacute;va zv&yacute;&scaron;en&yacute; dlh&scaron;ie. Po &uacute;&#269;innej lie&#269;be alebo po odstr&aacute;nen&iacute; z&aacute;palov&eacute;ho podnetu kles&aacute; pod&#318;a svojho pol&#269;asu rozpadu 5 - 6 dn&iacute;.&lt;\/div&gt;\"  href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/orozomukoid\/\"  data-mobile-support=\"0\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex='0' role='link'>AGP<\/a>) sa sk&uacute;mal ako diagnostick&yacute; marker FIP, ale m&ocirc;&#382;e by&#357; zv&yacute;&scaron;en&yacute; aj pri in&yacute;ch stavoch, &#269;&iacute;m sa obmedzuje jeho &scaron;pecifickos&#357; <sup>[52,53]<\/sup>. <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;&amp;lt;!-- wp:paragraph --&amp;gt;SAA (s&eacute;rov&yacute; &#8203;&#8203;amyloid A) je tukov&yacute; protein syntetizovan&yacute; v&yacute;hradn&#283; v j&aacute;trech. Transportuje cholesterol do jater. Je sou&#269;&aacute;st&iacute; protein&#367; a pr&#367;b&#283;hu akutn&iacute; f&aacute;ze z&aacute;n&#283;tu (APPs). Indukuje enzymy, kter&eacute; rozkl&aacute;daj&iacute; extracelul&aacute;rn&iacute; matrix. SAA je je produkov&aacute;no p&#345;i z&aacute;n&#283;tliv&yacute;ch procesech v t&#283;le jako n&aacute;sledek fyzick&eacute;ho po&scaron;kozen&iacute; (traumata), p&#345;i n&aacute;dorov&yacute;ch onemocn&#283;n&iacute;ch nebo infekc&iacute;ch.&amp;lt;br&amp;gt;Vzhedem k tomu, &#382;e u ko&#269;ek nelze vyu&#382;&iacute;t stanoven&iacute; C-reaktivn&iacute;ho proteinu, proto&#382;e jeho hodnota p&#345;i z&aacute;n&#283;tu nestoup&aacute;, tak vy&scaron;et&#345;ovan&yacute; parametr SAA u ko&#269;ek je jedin&yacute; a nejcitliv&#283;j&scaron;&iacute; dostupn&yacute; marker akutn&iacute;ch z&aacute;n&#283;t&#367; na trhu.&amp;lt;br\/&amp;gt;&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/serovy-amyloid-a\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">S&eacute;rov&yacute; amyloid A<\/a> (SAA) je &#271;al&scaron;&iacute;m prote&iacute;nom ak&uacute;tnej f&aacute;zy, ktor&yacute; zrejme rozli&scaron;uje medzi infekciou FIPV a FECV, pri&#269;om ma&#269;ky infikovan&eacute; FIPV vykazuj&uacute; vy&scaron;&scaron;ie hladiny SAA v porovnan&iacute; s ma&#269;kami infikovan&yacute;mi FECV a kontroln&yacute;mi ma&#269;kami bez SPF <sup>[54]<\/sup>, ale m&aacute; obmedzen&eacute; pou&#382;itie pri rozli&scaron;ovan&iacute; FIP od in&yacute;ch efuz&iacute;vnych stavov <sup>[55]<\/sup>.<\/p>\n\n\n\n<p id=\"__p13\">Podobne ako v pr&iacute;pade FCoV maj&uacute; jedinci trpiaci &#357;a&#382;k&yacute;mi formami COVID-19 vy&scaron;&scaron;ie hladiny SAA v porovnan&iacute; s jedincami s miernej&scaron;ou formou COVID-19 <sup>[56]<\/sup>. Vy&scaron;&scaron;ie hladiny SAA sa uv&aacute;dzaj&uacute; aj u pacientov, ktor&iacute; zomreli na COVID-19, v porovnan&iacute; s t&yacute;mi, ktor&iacute; pre&#382;ili <sup>[57]<\/sup>. C-reakt&iacute;vny prote&iacute;n (CRP) je &#271;al&scaron;&iacute; marker, ktor&yacute; sa ukazuje ako s&#318;ubn&yacute; biomarker pri infekci&aacute;ch FCoV aj SARS-CoV-2. Synt&eacute;za CRP pe&#269;e&#328;ou je indukovan&aacute; expresiou IL-6 ako odpove&#271; na z&aacute;pal <sup>[58]<\/sup> a je zv&yacute;&scaron;en&aacute; v pr&iacute;padoch FIP <sup>[59]<\/sup>. Zv&yacute;&scaron;en&eacute; hladiny CRP v po&#269;iato&#269;n&yacute;ch &scaron;t&aacute;di&aacute;ch COVID-19 sa sp&aacute;jaj&uacute; s &#357;a&#382;&scaron;&iacute;m priebehom ochorenia a vy&scaron;&scaron;ou &uacute;mrtnos&#357;ou <sup>[60,61,62]<\/sup>, &#269;o viedlo k odpor&uacute;&#269;aniu pou&#382;&iacute;va&#357; ho ako prognostick&yacute; ukazovate&#318; pri hodnoten&iacute; rizika u pacientov hospitalizovan&yacute;ch pre COVID-19. Naopak, v jednom metaprieskume sa zistilo, &#382;e hladiny IL-6 s&uacute; s&iacute;ce zv&yacute;&scaron;en&eacute;, ale minim&aacute;lne o jeden r&aacute;d ni&#382;&scaron;ie u pacientov s COVID-19 ako u pacientov s ARDS a sepsou nes&uacute;visiacou s COVID-19, &#269;o nazna&#269;uje in&yacute; mechanizmus imunitnej dysregul&aacute;cie <sup>[63]<\/sup>.<\/p>\n\n\n\n<p id=\"__p14\">D-dim&eacute;r, hoci nie je &scaron;pecifick&yacute; pre COVID-19 alebo FIP, je &#271;al&scaron;&iacute;m zauj&iacute;mav&yacute;m biomarkerom. D-dim&eacute;r sa uvo&#318;&#328;uje pri rozpade fibr&iacute;nu a pou&#382;&iacute;va sa ako klinick&yacute; n&aacute;stroj na vyl&uacute;&#269;enie tromboemb&oacute;lie <sup>[64]<\/sup>. Trombotick&eacute; pr&iacute;hody boli &#269;asto zdokumentovan&eacute; u COVID-19 vo viacer&yacute;ch org&aacute;nov&yacute;ch syst&eacute;moch <sup>[65,66]<\/sup> a zv&yacute;&scaron;en&eacute; hladiny D-dim&eacute;ru s&uacute; spojen&eacute; s vy&scaron;&scaron;ou morbiditou a mortalitou <sup>[67,68]<\/sup>. Podobne sa trombotick&eacute; pr&iacute;hody m&ocirc;&#382;u vyskytn&uacute;&#357; aj pri FIP a vysok&eacute; hladiny D-dim&eacute;rov spolu s &#271;al&scaron;&iacute;mi pr&iacute;znakmi diseminovanej intravaskul&aacute;rnej koagul&aacute;cie (DIC) mo&#382;no pozorova&#357; v kone&#269;n&yacute;ch &scaron;t&aacute;di&aacute;ch FIP pri prirodzen&yacute;ch aj experiment&aacute;lnych infekci&aacute;ch <sup>[69,70]<\/sup>.<\/p>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\" id=\"sec5-viruses-14-00481title\">5. Patofyziol&oacute;gia<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"sec5dot1-viruses-14-00481title\">5.1. Neurologick&aacute;<\/h3>\n\n\n\n<p id=\"__p15\">FIP je jedn&yacute;m z hlavn&yacute;ch infek&#269;n&yacute;ch neurologick&yacute;ch ochoren&iacute; ma&#269;iek a pr&iacute;znaky spojen&eacute; s infekciou centr&aacute;lneho nervov&eacute;ho syst&eacute;mu (<a class=\"glossaryLink\"  aria-describedby=\"tt\"  data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Centr&aacute;ln&iacute; nervov&aacute; soustava (CNS) je &uacute;st&#345;edn&iacute; &#269;&aacute;st nervov&eacute; soustavy obratlovc&#367;. Spolu s perifern&iacute;mi nervy hraje &uacute;st&#345;edn&iacute; roli v &#345;&iacute;zen&iacute; jejich chov&aacute;n&iacute;. Centr&aacute;ln&iacute; nervov&aacute; soustava se skl&aacute;d&aacute; z mozku a m&iacute;chy.&lt;\/div&gt;\"  href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/centralna-nervova-sustava\/\"  data-mobile-support=\"0\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex='0' role='link'>CNS<\/a>) s&uacute; dobre zdokumentovan&eacute; <sup>[71]<\/sup>. Pr&iacute;znaky CNS sa zaznamen&aacute;vaj&uacute; pribli&#382;ne v 40 % pr&iacute;padov suchej FIP a m&ocirc;&#382;u sa prejavova&#357; ako <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;&amp;lt;!-- wp:paragraph --&amp;gt;&amp;lt;strong&amp;gt;Nystagmus&amp;lt;\/strong&amp;gt;&nbsp;je rytmick&yacute; konjugovan&yacute; kmitav&yacute; pohyb&nbsp;o&#269;n&iacute;ch bulb&#367;. Jde o o&#269;n&iacute; vadu, kter&aacute; zp&#367;sobuje nekontrolovan&eacute;, rychl&eacute; a trhav&eacute; pohyby o&#269;&iacute;, v&#283;t&scaron;inou ze strany na stranu, ale n&#283;kdy nahoru a dol&#367; nebo krou&#382;iv&yacute;m pohybem. V&#283;t&scaron;ina lid&iacute; s nystagmem m&aacute; z&aacute;rove&#328; i &scaron;patn&yacute;&nbsp;zrak. To zp&#367;sobuje probl&eacute;my p&#345;i vzd&#283;l&aacute;v&aacute;n&iacute;, zam&#283;stnanosti a v mnoha dal&scaron;&iacute;ch oblastech &#382;ivota. Nystagmus nem&#367;&#382;e b&yacute;t korigov&aacute;n&nbsp;br&yacute;lemi&nbsp;nebo&nbsp;kontaktn&iacute;mi &#269;o&#269;kami, i kdy&#382; mnoho lid&iacute; s nystagmem br&yacute;le nebo kontaktn&iacute; &#269;o&#269;ky nos&iacute;, pro korekci jin&yacute;ch o&#269;n&iacute;ch probl&eacute;m&#367;.&amp;lt;br\/&amp;gt;&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/nystagmus\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">nystagmus<\/a>, <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;&amp;lt;!-- wp:paragraph --&amp;gt;lat. sto&#269;en&iacute; hlavy k jedn&eacute; stran&#283; krku &#269;asto prov&aacute;zen&eacute; bolestiv&yacute;m spasmem kr&#269;n&iacute;ch sval&#367;. Vznik&aacute; p&#345;i porodu, n&#283;kter&yacute;ch nervov&yacute;ch poruch&aacute;ch, chorob&aacute;ch sval&#367; &#269;i p&aacute;te&#345;e. M&#367;&#382;e j&iacute;t o iritaci n. XI. vyvolanou nap&#345;. ohrani&#269;enou ischemi&iacute;, sclerosis multiplex, syringobulbi&iacute; aj. P&#345;i malformac&iacute;ch kr&#269;n&iacute; p&aacute;te&#345;e jde o t. osseus, je-li p&#345;&iacute;&#269;inou naru&scaron;en&aacute; funkce okohybn&yacute;ch sval&#367;, jde o t. ocularis, p&#345;i &uacute;razov&eacute; p&#345;&iacute;&#269;in&#283; o t. posttraumaticus apod. Vrozen&yacute; t. je obv. svalov&eacute;ho p&#367;vodu t. muscularis p&#345;i zkr&aacute;cen&iacute; m. sternocleidomastoideus. L&eacute;&#269;&iacute; se cvi&#269;en&iacute;m, rehabilitac&iacute;, u vrozen&eacute;ho t. se n&#283;kdy prov&aacute;d&iacute; myotomie. Srov. skoli&oacute;za obli&#269;eje, dystonie lat. tortus sto&#269;en&yacute; od torqueo, tortum kroutit; collum&amp;lt;br\/&amp;gt;&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/torticollis\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">torticollis<\/a>, <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;&amp;lt;!-- wp:paragraph --&amp;gt;&amp;lt;strong&amp;gt;Ataxie&amp;lt;\/strong&amp;gt;&nbsp;(z&nbsp;&#345;eck&eacute;ho&nbsp;&alpha;&tau;&#940;&xi;&iota;&sigmaf;,&nbsp;latinsky:&nbsp;&amp;lt;em&amp;gt;ataxia&amp;lt;\/em&amp;gt;) je&nbsp;neurologick&yacute;&nbsp;symptom&nbsp;spo&#269;&iacute;vaj&iacute;c&iacute; v poru&scaron;e koordinace pohyb&#367;. Jedn&aacute; se o nespecifick&yacute; klinick&yacute; projev nazna&#269;uj&iacute;c&iacute; dysfunkci &#269;&aacute;sti&nbsp;nervov&eacute; soustavy&nbsp;zodpov&#283;dn&eacute; za koordinaci pohyb&#367;, jako je nap&#345;&iacute;klad&nbsp;moze&#269;ek. Pro ataxii existuje vz&aacute;cn&#283; pou&#382;&iacute;van&eacute; synonymum &ndash; &amp;quot;dystaxie.&amp;quot;&amp;lt;br\/&amp;gt;&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/ataxia\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">ataxia<\/a>, paral&yacute;za, zmenen&eacute; spr&aacute;vanie, zmenen&aacute; ment&aacute;cia a z&aacute;chvaty <sup>[72]<\/sup>. &Scaron;irok&eacute; spektrum pr&iacute;znakov podporuje z&aacute;ver, &#382;e infekcia nie je obmedzen&aacute; na ur&#269;it&uacute; &#269;as&#357; CNS <sup>[73]<\/sup>. Infekcia v CNS je obmedzen&aacute; na monocytov&uacute; a makrof&aacute;gov&uacute; l&iacute;niu a vedie k pyogranulomat&oacute;znemu a lymfoplazmacytick&eacute;mu z&aacute;palu, ktor&yacute; zvy&#269;ajne postihuje leptomeningy, choroid&aacute;lny plexus a periventrikul&aacute;rny <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;&amp;lt;!-- wp:paragraph --&amp;gt;Parench&yacute;m je funk&#269;n&eacute; epitelov&eacute; tkanivo org&aacute;nov, ako s&uacute; pe&#269;e&#328;, p&#318;&uacute;ca, obli&#269;ky. Vzh&#318;ad a funkcia parench&yacute;mu ka&#382;d&eacute;ho org&aacute;nu s&uacute; &scaron;pecifick&eacute;. Okrem parench&yacute;mu sa org&aacute;ny skladaj&uacute; z v&auml;zivovej str&oacute;my (&amp;quot;kostry&amp;quot;), ktor&aacute; obsahuje napr&iacute;klad cievy, nervy at&#271;.&amp;lt;br\/&amp;gt;&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/parenchym\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">parench&yacute;m<\/a> <sup>[74]<\/sup>.<\/p>\n\n\n\n<p id=\"__p16\">Dokument&aacute;cia neurologick&yacute;ch pr&iacute;znakov spojen&yacute;ch s infekciou CNS v&iacute;rusom SARS-CoV-2 je v porovnan&iacute; s in&yacute;mi koronav&iacute;rusmi obmedzen&aacute; <sup>[75]<\/sup>. Pozorovan&eacute; pr&iacute;znaky s&uacute; r&ocirc;zne, od bolesti hlavy a zm&auml;tenosti a&#382; po z&aacute;chvaty a ak&uacute;tne cerebrovaskul&aacute;rne pr&iacute;hody <sup>[76]<\/sup>. Odhalenie v&iacute;rusu v mozgu je zriedkav&eacute;, &#269;o nazna&#269;uje, &#382;e pr&iacute;znaky nemusia priamo s&uacute;visie&#357; s infekciou CNS. V&iacute;rusov&eacute; &#269;astice boli pozorovan&eacute; v endotelov&yacute;ch bunk&aacute;ch neur&aacute;lnych kapil&aacute;r a v podskupine krani&aacute;lnych nervov, hoci tak&aacute;to detekcia nekoreluje so z&aacute;va&#382;nos&#357;ou neurologick&yacute;ch pr&iacute;znakov <sup>[77]<\/sup>. &#268;asto nie s&uacute; zjavn&eacute; d&ocirc;kazy priamej infekcie. Namiesto toho sa zaznamen&aacute;vaj&uacute; z&aacute;palov&eacute; medi&aacute;tory, ako napr&iacute;klad aktivovan&aacute; mikroglia, ktor&eacute; m&ocirc;&#382;u prispieva&#357; k mikrovaskul&aacute;rnemu po&scaron;kodeniu a ochoreniu. <sup>[78,79]<\/sup>.<\/p>\n\n\n\n<p id=\"__p17\">&#270;al&scaron;ie porovnanie neuroz&aacute;palov&yacute;ch vlastnost&iacute; SARS-CoV-2 a FCoV m&ocirc;&#382;e prinies&#357; nov&yacute; poh&#318;ad na neurologick&eacute; prejavy COVID-19. Pre pochopenie progresie COVID-19 a rozsahu infekcie CNS je nevyhnutn&eacute; &#271;al&scaron;ie sk&uacute;manie neurologick&yacute;ch pr&iacute;znakov spojen&yacute;ch so SARS-CoV-2.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"sec5dot2-viruses-14-00481title\">5.2. Oftalmologick&aacute;<\/h3>\n\n\n\n<p id=\"__p18\">O&#269;n&eacute; prejavy FIP s&uacute; &#269;astej&scaron;ie pri suchej forme ochorenia <sup>[80]<\/sup>. Bola pozorovan&aacute; mydri&aacute;za, irit&iacute;da, odl&uacute;&#269;enie sietnice, konjunktivit&iacute;da, <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;&amp;lt;!-- wp:paragraph --&amp;gt;p&#345;&iacute;tomnost krve v p&#345;edn&iacute; komo&#345;e o&#269;n&iacute;. Vznik&aacute; nap&#345;. p&#345;i traumatech oka (tup&eacute; poran&#283;n&iacute; p&#345;edn&iacute; komory nej&#269;. s roztr&#382;en&iacute;m c&eacute;v v &#345;asnat&eacute;m t&#283;lese, izolovan&aacute; traumata rohovky), p&#345;i hemoragick&eacute; exsudaci p&#345;i iridocyklitid&#283; ev. p&#345;i syst&eacute;mov&eacute; hemoragick&eacute; diat&eacute;ze. Projevuje se poruchou visu, pop&#345;. dal&scaron;&iacute;mi p&#345;&iacute;znaky vypl&yacute;vaj&iacute;c&iacute;mi ze z&aacute;kladn&iacute; p&#345;&iacute;&#269;iny. Krev je ve vertik&aacute;ln&iacute; poloze pacienta usazena v doln&iacute; &#269;&aacute;sti komory. Vzestup nitroo&#269;n&iacute;ho tlaku m&#367;&#382;e v&eacute;st k sekund&aacute;rn&iacute;mu glaukomu, ukl&aacute;d&aacute;n&iacute; hemosiderinu m&#367;&#382;e zp&#367;sobit zm&#283;nu barvy rohovky. L&eacute;&#269;&iacute; se konzervativn&#283; (klid, antiglaukomat&oacute;zn&iacute; l&eacute;ky, cykloplegika aj.) &#269;i chirurgicky. D&#367;le&#382;it&eacute; je sledov&aacute;n&iacute; nitroo&#269;n&iacute;ho tlaku. Srov. hypopyon [hyp-; &#345;ec. haima krev]&amp;lt;br\/&amp;gt;&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/hyphema\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">hyf&eacute;ma<\/a> a keratick&eacute; precipit&aacute;ty <sup>[81]<\/sup>. Naj&#269;astej&scaron;&iacute;m o&#269;n&yacute;m prejavom FIP je <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Z&aacute;n&#283;t uve&aacute;ln&iacute;ho traktu. M&#367;&#382;e postihovat duhovku (iritis), &#345;asnat&eacute; t&#283;leso (cyklitis), c&eacute;vnatku (chorioiditis).&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/uveitida\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">uveit&iacute;da<\/a>, ktor&aacute; m&ocirc;&#382;e postihova&#357; predn&uacute; aj zadn&uacute; uveu <sup>[80]<\/sup>. V&iacute;rusov&yacute; <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;&amp;lt;!-- wp:paragraph --&amp;gt;&amp;lt;strong&amp;gt;Antigen&amp;lt;\/strong&amp;gt;&nbsp;je l&aacute;tka, kter&aacute; navozuje produkci jedn&eacute; nebo v&iacute;ce&nbsp;protil&aacute;tek. Ka&#382;d&aacute; protil&aacute;tka se v&aacute;&#382;e na specifick&yacute; antigen formou interakce podobn&eacute; zapadnut&iacute; kl&iacute;&#269;e do z&aacute;mku. Antigen m&#367;&#382;e b&yacute;t z vn&#283;j&scaron;&iacute;ho prost&#345;ed&iacute; nebo vznik&aacute; v t&#283;le. Bu&#328;ky imunitn&iacute;ho syst&eacute;mu se sna&#382;&iacute; zni&#269;it nebo neutralizovat jak&yacute;koli antigen, kter&yacute; je rozpozn&aacute;n jako ciz&iacute; a potenci&aacute;ln&#283; &scaron;kodliv&yacute;. Slovo &amp;quot;antigen&amp;quot; vzniklo z term&iacute;nu&nbsp;&amp;lt;strong&amp;gt;anti&amp;lt;\/strong&amp;gt;body&nbsp;&amp;lt;strong&amp;gt;gen&amp;lt;\/strong&amp;gt;erator&amp;lt;sup&amp;gt;[1][2]&amp;lt;\/sup&amp;gt;&nbsp;a popisovalo molekulu, kter&aacute; se specificky v&aacute;&#382;e na protil&aacute;tku. Nyn&iacute; se ale term&iacute;n vztahuje i na v&scaron;echny molekuly nebo molekul&aacute;rn&iacute; fragmenty, kter&eacute; mohou b&yacute;t v&aacute;z&aacute;ny&nbsp;hlavn&iacute;m histokompatibiln&iacute;m komplexem&nbsp;(MHC) a prezentov&aacute;ny T-bun&#283;&#269;n&eacute;mu receptoru.&amp;lt;sup&amp;gt;[3]&amp;lt;\/sup&amp;gt;&nbsp;Vlastn&iacute; antigeny jsou obvykle imunitn&iacute;m syst&eacute;mem tolerov&aacute;ny, zat&iacute;mco ciz&iacute; antigeny jsou identifikov&aacute;ny jako potenci&aacute;ln&#283; nebezpe&#269;n&eacute; a mohou b&yacute;t imunitn&iacute;m syst&eacute;mem napadeny.&amp;lt;br\/&amp;gt;&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/antigen\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">antig&eacute;n<\/a> sa m&ocirc;&#382;e zisti&#357; aj v epiteli&aacute;lnych bunk&aacute;ch niktituj&uacute;cej membr&aacute;ny, av&scaron;ak detekcia v&iacute;rusov&eacute;ho antig&eacute;nu nerozli&scaron;uje medzi FECV a FIPV <sup>[82]<\/sup>.<\/p>\n\n\n\n<p id=\"__p19\">Medzi o&#269;n&eacute; prejavy COVID-19 patr&iacute; konjunktivit&iacute;da, chem&oacute;za, epifora, hyper&eacute;mia spojiviek a zv&yacute;&scaron;en&aacute; produkcia s&#314;z <sup>[83]<\/sup>. Uveit&iacute;da &ndash; be&#382;n&aacute; o&#269;n&aacute; prezent&aacute;cia FIP &ndash; bola pozorovan&aacute; aj pri infekcii SARS-CoV-2 <sup>[84,85]<\/sup>. Zistenie v&iacute;rusu v slznej tekutine viedlo k obav&aacute;m z o&#269;n&eacute;ho prenosu v prv&yacute;ch mesiacoch pand&eacute;mie COVID-19 [83,86]. <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Ribonukleov&aacute; kyselina. Polymern&iacute; makromolekula, jej&iacute;&#382; z&aacute;kladn&iacute;mi stavebn&iacute;mi jednotkami jsou ribonukleotidy. Je sou&#269;&aacute;st&iacute; v&scaron;ech bun&#283;k a slou&#382;&iacute; k p&#345;enosu informac&iacute; z DNA d&aacute;le do bu&#328;ky. Existuje mnoho druh&#367; RNA s r&#367;zn&yacute;mi funkcemi. Mezi nejzn&aacute;mn&#283;j&scaron;&iacute; pat&#345;&iacute; mRNA (medi&aacute;torov&aacute;), tRNA (transferov&aacute;) a rRNA (ribozom&aacute;ln&iacute;).&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/rna\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">RNA<\/a> SARS-CoV-2 bola zisten&aacute; v slzn&yacute;ch sekr&eacute;toch a bola izolovan&aacute; z o&#269;n&yacute;ch sekr&eacute;tov, &#269;o podporuje mo&#382;nos&#357; oftalmologick&eacute;ho prenosu<sup> [87,88]<\/sup>. Je zauj&iacute;mav&eacute;, &#382;e v uvedenej pr&iacute;padovej &scaron;t&uacute;dii v &#268;&iacute;ne sa z 12 pacientov s oftalmologick&yacute;mi pr&iacute;znakmi vr&aacute;tili pozit&iacute;vne spojivkov&eacute; testy len u 2 pacientov, &#269;o nazna&#269;uje obmedzen&uacute; citlivos&#357; pri detekcii v&iacute;rusu zo spojivkov&yacute;ch vzoriek <sup>[83]<\/sup>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"sec5dot3-viruses-14-00481title\">5.3. Kardiovaskul&aacute;rna<\/h3>\n\n\n\n<p id=\"__p20\">Perikardi&aacute;lny v&yacute;potok je menej &#269;ast&yacute;m prejavom FIP, ale v literat&uacute;re je dobre zdokumentovan&yacute; <sup>[26,89,90,91]<\/sup>. FCoV bol zisten&yacute; v perikarde ma&#269;ky s opakovan&yacute;m perikardi&aacute;lnym v&yacute;potkom, u ktorej sa nesk&ocirc;r objavili neurologick&eacute; pr&iacute;znaky <sup>[92]<\/sup>. Priama infekcia srdca v&iacute;rusom FCoV bola zdokumentovan&aacute; v pr&iacute;padovej &scaron;t&uacute;dii z roku 2019, v ktorej sa uv&aacute;dza myokardit&iacute;da spojen&aacute; s FIP s v&yacute;raznou hypertrofiou &#318;avej komory a zv&auml;&#269;&scaron;en&iacute;m predsien&iacute; <sup>[93]<\/sup>. <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;&amp;lt;!-- wp:paragraph --&amp;gt;imunohistochemie &ndash; histologick&aacute; metoda, p&#345;i n&iacute;&#382; se ve vy&scaron;et&#345;ovan&eacute;m vzorku tk&aacute;n&#283; prokazuje p&#345;&iacute;tomnost ur&#269;it&yacute;ch antigen&#367; pomoc&iacute; specifick&yacute;ch protil&aacute;tek s nav&aacute;zan&yacute;mi chemick&yacute;mi slou&#269;eninami, kter&eacute; umo&#382;&#328;uj&iacute; jejich pr&#367;kaz nap&#345;. imunoperoxid&aacute;zov&aacute; reakce. Lze nap&#345;. rozli&scaron;it n&#283;kter&eacute; typy bun&#283;k &#269;i prok&aacute;zat n&#283;kter&eacute; chorobn&eacute; zm&#283;ny. Srov. imunofluorescence, histochemie imuno-; histochemie&amp;lt;br\/&amp;gt;&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/imunohistochemie\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">Imunohistoch&eacute;mia<\/a> (IHC) odhalila pr&iacute;tomnos&#357; makrof&aacute;gov infikovan&yacute;ch FCoV a pridru&#382;en&yacute;ch pyogranulomat&oacute;znych l&eacute;zi&iacute;. <sup>[26]<\/sup>. Je zauj&iacute;mav&eacute;, &#382;e &#357;a&#382;k&aacute; infekcia SARS-CoV-2 s d&ocirc;kazom replik&aacute;cie v&iacute;rusu v srdci a p&#318;&uacute;cach bola ned&aacute;vno zdokumentovan&aacute; u ma&#269;ky s u&#382; existuj&uacute;cou hypertrofickou kardiomyopatiou (HCM) <sup>[94]<\/sup>.<\/p>\n\n\n\n<p id=\"__p21\">Na rozdiel od FIP sa zd&aacute;, &#382;e po&scaron;kodenie srdca spojen&eacute; s infekciou SARS-CoV-2 je ove&#318;a roz&scaron;&iacute;renej&scaron;ie. V &scaron;t&uacute;dii na 187 pacientoch sa zistilo, &#382;e 27,8 % pr&iacute;padov COVID-19 vykazovalo d&ocirc;kazy o po&scaron;koden&iacute; myokardu, o &#269;om sved&#269;ia zv&yacute;&scaron;en&eacute; hladiny srdcov&eacute;ho tropon&iacute;nu (TnT) <sup>[95]<\/sup>. Vysok&eacute; hladiny TnT boli zase spojen&eacute; s vy&scaron;&scaron;ou &uacute;mrtnos&#357;ou. V retrospekt&iacute;vnej multicentrickej &scaron;t&uacute;dii 68 pacientov s COVID-19 sa zaznamenalo 27 &uacute;mrt&iacute;, ktor&eacute; bolo mo&#382;n&eacute; prip&iacute;sa&#357; po&scaron;kodeniu myokardu a\/alebo zlyhaniu krvn&eacute;ho obehu ako jednej z hlavn&yacute;ch pr&iacute;&#269;in &uacute;mrtnosti, pri&#269;om zv&yacute;&scaron;en&eacute; hladiny C-reakt&iacute;vneho prote&iacute;nu a IL-6 boli spojen&eacute; s vy&scaron;&scaron;ou &uacute;mrtnos&#357;ou <sup>[96]<\/sup>. Zv&yacute;&scaron;enie tak&yacute;chto z&aacute;palov&yacute;ch biomarkerov v krvi nazna&#269;uje, &#382;e r&yacute;chly z&aacute;palov&yacute; charakter COVID-19 m&ocirc;&#382;e ma&#357; obzvl&aacute;&scaron;&#357; &scaron;kodliv&yacute; vplyv na funkciu srdca. Pri infekcii COVID-19 sa zaznamenal dif&uacute;zny ed&eacute;m, ako aj zv&yacute;&scaron;en&aacute; hr&uacute;bka steny a hypokin&eacute;za <sup>[97]<\/sup>. U pacientov s COVID-19 bola pozorovan&aacute; aj tampon&aacute;da srdca, pri&#269;om v perikardi&aacute;lnej tekutine boli zistite&#318;n&eacute; hladiny SARS-CoV-2 <sup>[98]<\/sup>. Na rozdiel od FIP, pri ktorej sa pri myokardit&iacute;de pozorovala priama inv&aacute;zia makrof&aacute;gov infikovan&yacute;ch FCoV do myokardu, infekcia myokardu v&iacute;rusom SARS-CoV-2 nie je jednozna&#269;ne spojen&aacute; s infiltr&aacute;ciou mononukle&aacute;rnych buniek alebo myokardit&iacute;dou<sup> [99]<\/sup>. To vedie k &uacute;vah&aacute;m o viacer&yacute;ch syst&eacute;mov&yacute;ch faktoroch pri nepriazniv&yacute;ch v&yacute;sledkoch srdca &ndash; najm&auml; o dysregul&aacute;cii z&aacute;palov&yacute;ch <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Cytokin (podobn&yacute; term&iacute;n interleukin) je ozna&#269;en&iacute; pro skupinu men&scaron;&iacute;ch sign&aacute;ln&iacute;ch protein&#367;, &uacute;&#269;astn&iacute;c&iacute;ch se v&yacute;znamn&#283; v imunitn&iacute; odpov&#283;di. Cytokiny jsou produkov&aacute;ny bu&#328;kami imunitn&iacute;ho syst&eacute;mu (makrof&aacute;gy, T-lymfocyty, atp.) a jsou schopn&eacute; navodit nap&#345;&iacute;klad rychl&eacute; d&#283;len&iacute; a diferenciaci ur&#269;it&yacute;ch typ&#367; bun&#283;k, kter&eacute; se &uacute;&#269;astn&iacute; boje proti patogen&#367;m, p&#345;&iacute;padn&#283; dal&scaron;&iacute; rysy imunitn&iacute; obrany.V ur&#269;it&eacute;m slova smyslu cytokiny nemus&iacute; b&yacute;t produkov&aacute;ny pouze b&iacute;l&yacute;mi krvinkami a v&yacute;znam slova se roz&scaron;i&#345;uje na v&scaron;echny mal&eacute; sign&aacute;ln&iacute; proteiny; term&iacute;n interleukin se v tom p&#345;&iacute;pad&#283; pou&#382;&iacute;v&aacute; pro sign&aacute;ln&iacute; molekuly vylu&#269;ovan&eacute; b&iacute;l&yacute;mi krvinkami.&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/cytokin\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">cytok&iacute;nov<\/a>. Vplyv infekcie SARS-CoV-2 na kardiovaskul&aacute;rny syst&eacute;m je d&ocirc;le&#382;it&yacute;m prvkom n&aacute;&scaron;ho prehlbuj&uacute;ceho sa ch&aacute;pania morbidity a mortality spojenej s COVID-19.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"sec5dot4-viruses-14-00481title\">5.4. Gastroenterologick&aacute;<\/h3>\n\n\n\n<p id=\"__p22\">FCoV sa vylu&#269;uje vo v&yacute;kaloch a pren&aacute;&scaron;a sa oronaz&aacute;lnou cestou. Po&#269;iato&#269;n&aacute; infekcia FCoV je zameran&aacute; na &#269;revn&yacute; trakt &ndash; infekcia m&ocirc;&#382;e by&#357; subklinick&aacute; alebo sa u ma&#269;iek m&ocirc;&#382;e objavi&#357; hna&#269;ka a menej &#269;asto zvracanie. Prim&aacute;rna infekcia trv&aacute; nieko&#318;ko mesiacov a v&iacute;rus sa m&ocirc;&#382;e vylu&#269;ova&#357; mesiace a&#382; roky <sup>[100,101]<\/sup>. Zd&aacute; sa, &#382;e bunky st&#314;pcov&eacute;ho epitelu hrub&eacute;ho &#269;reva sl&uacute;&#382;ia ako rezervo&aacute;r pre perzistentn&uacute; infekciu a vylu&#269;ovanie <sup>[21]<\/sup>. Pr&iacute;znaky b&yacute;vaj&uacute; mierne a samovo&#318;n&eacute; a len mal&aacute; &#269;as&#357; zvierat prejde do &scaron;t&aacute;dia FIP. Fibrin&oacute;zna serozit&iacute;da a pyogranulomat&oacute;zne l&eacute;zie s vaskulit&iacute;dou s&uacute; klasick&yacute;mi l&eacute;ziami FIP a mo&#382;no ich n&aacute;js&#357; v tenkom aj hrubom &#269;reve postihnut&yacute;ch ma&#269;iek <sup>[102]<\/sup>. FIP m&ocirc;&#382;e sp&ocirc;sobi&#357; solit&aacute;rne masov&eacute; l&eacute;zie v &#269;revnej stene, hoci sa to poklad&aacute; za zriedkav&uacute; prezent&aacute;ciu (26\/156 ma&#269;iek v jednej &scaron;t&uacute;dii) <sup>[103]<\/sup>. Tieto sa zvy&#269;ajne nach&aacute;dzaj&uacute; v hrubom &#269;reve alebo ileocek&aacute;lnom spoji a maj&uacute; pyogranulomat&oacute;zny charakter.<\/p>\n\n\n\n<p id=\"__p23\">Pri infekcii COVID-19 s&uacute; &#269;asto hl&aacute;sen&eacute; gastroenterologick&eacute; pr&iacute;znaky. ACE2, bunkov&yacute; receptor pre SARS-CoV-2, je &scaron;iroko exprimovan&yacute; v &#382;&#318;azov&yacute;ch bunk&aacute;ch &#382;al&uacute;do&#269;n&eacute;ho, dvan&aacute;stnikov&eacute;ho a rekt&aacute;lneho epitelu. V t&yacute;chto tkaniv&aacute;ch sa zistila v&iacute;rusov&aacute; RNA a nukleokapsid <sup>[104]<\/sup>, &#269;o podporuje ich vhodnos&#357; na replik&aacute;ciu SARS-CoV-2. Gastrointestin&aacute;lne (GI) pr&iacute;znaky sa pohybuj&uacute; od v&scaron;eobecn&eacute;ho nechutenstva a&#382; po hna&#269;ku, nevo&#318;nos&#357;, vracanie a bolesti brucha <sup>[105,106]<\/sup>. Ak vyl&uacute;&#269;ime menej &scaron;pecifick&yacute; pr&iacute;znak nechutenstva, viacer&eacute; metaanal&yacute;zy odhaduj&uacute; prevalenciu GI pr&iacute;znakov u pacientov s COVID-19 na pribli&#382;ne 10 % a&#382; 20 %, pri&#269;om naj&#269;astej&scaron;ie hl&aacute;sen&yacute;m pr&iacute;znakom je hna&#269;ka <sup>[106,107,108]<\/sup>. Zauj&iacute;mav&eacute; je, &#382;e GI sympt&oacute;my u COVID-19 boli pozorovan&eacute; bez sprievodu respira&#269;n&yacute;ch pr&iacute;znakov <sup>[105]<\/sup>.<\/p>\n\n\n\n<p id=\"__p24\">Vylu&#269;ovanie v&iacute;rusu vo v&yacute;kaloch vyvol&aacute;va v pr&iacute;pade COVID-19 zna&#269;n&eacute; obavy, preto&#382;e RNA SARS-CoV-2 m&ocirc;&#382;e by&#357; na&#271;alej pr&iacute;tomn&aacute; vo v&yacute;kaloch aj po dosiahnut&iacute; nedetekovate&#318;n&yacute;ch hlad&iacute;n vo vzork&aacute;ch z horn&yacute;ch d&yacute;chac&iacute;ch ciest <sup>[109]<\/sup>. Hoci samotn&aacute; detekcia v&iacute;rusovej RNA v stolici nemus&iacute; nevyhnutne sved&#269;i&#357; o pr&iacute;tomnosti infek&#269;n&yacute;ch viri&oacute;nov, v stolici boli zisten&eacute; &#382;ivotaschopn&eacute; v&iacute;rusov&eacute; &#269;astice <sup>[110]<\/sup>. V&iacute;rusov&yacute; antig&eacute;n pretrv&aacute;va v bunk&aacute;ch gastrointestin&aacute;lneho traktu aj v rekonvalescentnej f&aacute;ze, a to a&#382; 6 mesiacov po vylie&#269;en&iacute; <sup>[20]<\/sup>. V jednej pr&iacute;padovej &scaron;t&uacute;dii bola perzistuj&uacute;ca infekcia hrub&eacute;ho &#269;reva spojen&aacute; s pretrv&aacute;vaj&uacute;cimi gastrointestin&aacute;lnymi pr&iacute;znakmi v pr&iacute;pade &bdquo;dlh&eacute;ho COVID&ldquo; <sup>[111]<\/sup>, &#269;o zav&aacute;dza paralelu k &uacute;lohe epitelu hrub&eacute;ho &#269;reva ako rezervo&aacute;ru FCoV.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"sec5dot5-viruses-14-00481title\">5.5. Dermatologick&aacute;<\/h3>\n\n\n\n<p id=\"__p25\">Dermatologick&eacute; zmeny boli hl&aacute;sen&eacute; pri infekci&aacute;ch SARS-CoV-2 aj FIPV. Hoci s&uacute; papul&oacute;zne ko&#382;n&eacute; l&eacute;zie zriedkav&eacute;, s&uacute; prim&aacute;rnym dermatologick&yacute;m prejavom FIP, pri&#269;om nieko&#318;ko dostupn&yacute;ch kazuist&iacute;k dokumentuje papuly <sup>[81,112,113,114]<\/sup>. Pri histologickom vy&scaron;etren&iacute; sa v nieko&#318;k&yacute;ch kazuistik&aacute;ch FIP zaznamenala pyogranulomat&oacute;zna dermatit&iacute;da, flebit&iacute;da, periflebit&iacute;da, vaskulit&iacute;da a nekr&oacute;za <sup>[81,112,113,114,115]<\/sup>.<\/p>\n\n\n\n<p id=\"__p26\">Prv&aacute; spr&aacute;va o dermatologick&yacute;ch prejavoch spojen&yacute;ch s COVID-19 bola zaznamenan&aacute; v nemocnici Lecco v Lombardii v Taliansku <sup>[116]<\/sup>. V tejto &scaron;t&uacute;dii sa u 18\/88 pacientov (20,4 %) prejavilo ko&#382;n&eacute; postihnutie, pri&#269;om 8\/18 pacientov bolo pozorovan&yacute;ch pri n&aacute;stupe ochorenia a 10\/18 po hospitaliz&aacute;cii <sup>[116]<\/sup>. Klinick&eacute; pr&iacute;znaky zah&#341;&#328;ali erytemat&oacute;znu vyr&aacute;&#382;ku (14\/18 pacientov), dif&uacute;znu urtik&aacute;riu (3\/18 pacientov) a vezikuly podobn&eacute; ov&#269;&iacute;m kiah&#328;am (1\/18 pacientov) <sup>[116]<\/sup>. L&eacute;zie sa pozorovali predov&scaron;etk&yacute;m na trupe (torze) a pruritus bol mierny alebo ch&yacute;bal <sup>[116]<\/sup>. Pokra&#269;ovanie pand&eacute;mie prinieslo lep&scaron;iu charakteristiku prv&yacute;ch pozorovan&yacute;ch dermatologick&yacute;ch pr&iacute;znakov, ako aj identifik&aacute;ciu zriedkavej&scaron;&iacute;ch prezent&aacute;ci&iacute;. Zd&aacute; sa, &#382;e naj&#269;astej&scaron;&iacute;m dermatologick&yacute;m prejavom COVID-19 je exant&eacute;mov&aacute; vyr&aacute;&#382;ka, &#269;asto charakterizovan&aacute; makulopapul&oacute;znymi l&eacute;ziami <sup>[117,118]<\/sup>. &#270;al&scaron;&iacute;m preva&#382;uj&uacute;cim dermatologick&yacute;m pr&iacute;znakom sa zd&aacute; by&#357; aj urtik&aacute;ria <sup>[118,119]<\/sup>. D&ocirc;le&#382;it&eacute; je, &#382;e ani exant&eacute;m, ani urtik&aacute;ria nie s&uacute; &scaron;pecifick&eacute; pre COVID-19, &#269;o obmedzuje ich pozit&iacute;vnu predikt&iacute;vnu hodnotu. Exant&eacute;m podobn&yacute; varicelle bol pozorovan&yacute; pri infekcii SARS-CoV-2 a m&ocirc;&#382;e by&#357; &scaron;pecifickej&scaron;&iacute;m prejavom vzh&#318;adom na jeho n&iacute;zku prevalenciu pri v&iacute;rusov&yacute;ch ochoreniach. Najm&auml; s ch&yacute;baj&uacute;cimi l&eacute;ziami v &uacute;stnej dutine a pruritom pozorovan&yacute;m pri vyr&aacute;&#382;ke spojenej s COVID-19, spolu s predch&aacute;dzaj&uacute;cou anamn&eacute;zou infekcie varicelou, sa &scaron;pecifickos&#357; tejto prezent&aacute;cie posil&#328;uje <sup>[118]<\/sup>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"sec5dot6-viruses-14-00481title\">5.6. Teriogenologick&aacute;<\/h3>\n\n\n\n<p id=\"__p27\">Vo viacer&yacute;ch pr&iacute;padoch FIP sa pozorovala <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;&amp;lt;!-- wp:paragraph --&amp;gt;Z&aacute;pal semenn&iacute;kov (orchit&iacute;da) je pomerne zriedkav&eacute; ochorenie, ktor&eacute; m&ocirc;&#382;e postihn&uacute;&#357; jeden semenn&iacute;k alebo zriedkavej&scaron;ie oba semenn&iacute;ky. Typick&yacute;m pr&iacute;znakom orchit&iacute;dy je bolestiv&yacute; a opuchnut&yacute; semenn&iacute;k alebo oba semenn&iacute;ky.&amp;lt;br\/&amp;gt;&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/orchitida\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">orchit&iacute;da<\/a> a periorchit&iacute;da s fibrinopurulentn&yacute;mi alebo granulomat&oacute;znymi infiltr&aacute;tmi, ako aj hypoplastick&eacute; semenn&iacute;ky <sup>[1,26,120]<\/sup>. Z&aacute;palov&eacute; medi&aacute;tory z tun&iacute;k obklopuj&uacute;cich semenn&iacute;ky sp&ocirc;sobili zv&auml;&#269;&scaron;enie semenn&iacute;kov u ma&#269;iek s FIP <sup>[26,120]<\/sup>. Pri efuz&iacute;vnej FIP sa pozorovalo zv&auml;&#269;&scaron;enie mie&scaron;ka v d&ocirc;sledku ed&eacute;mu a peritonit&iacute;dy tun&iacute;k <sup>[16]<\/sup>. Napriek zjavnej patol&oacute;gii sam&#269;ieho reproduk&#269;n&eacute;ho syst&eacute;mu ma&#269;iek sa FCoV v sperme nezistil, &#269;o zni&#382;uje pravdepodobnos&#357; pohlavn&eacute;ho sp&ocirc;sobu prenosu <sup>[121]<\/sup>. Patol&oacute;gia reproduk&#269;n&eacute;ho syst&eacute;mu sam&iacute;c pri FIP je zdokumentovan&aacute; v literat&uacute;re menej, ale boli pozorovan&eacute; makroskopick&eacute; l&eacute;zie pr&iacute;tomn&eacute; vo vaje&#269;n&iacute;koch ma&#269;iek infikovan&yacute;ch FIPV. Okolit&eacute; cievy maternice a vaje&#269;n&iacute;kov t&yacute;chto ma&#269;iek boli obklopen&eacute; lymfocytmi, makrof&aacute;gmi, plazmatick&yacute;mi bunkami a neutrofilmi <sup>[122]<\/sup>.<\/p>\n\n\n\n<p id=\"__p28\">Podobne ako pri FIP sa patol&oacute;gia COVID-19 prejavuje aj v reproduk&#269;nom syst&eacute;me mu&#382;ov. V jednej &scaron;t&uacute;dii, v ktorej sa sk&uacute;mali semenn&iacute;ky 12 pacientov s COVID-19, sa zistil ed&eacute;m, ako aj lymfocyt&aacute;rna a histiocyt&aacute;rna infiltr&aacute;cia, &#269;o zodpoved&aacute; v&iacute;rusovej orchit&iacute;de <sup>[123]<\/sup>. Tieto vzorky sa vyzna&#269;ovali aj po&scaron;koden&iacute;m semenotvorn&yacute;ch kan&aacute;likov s v&yacute;razn&yacute;m vplyvom na Sertoliho bunky, ako aj zn&iacute;&#382;en&yacute;m po&#269;tom Leydigov&yacute;ch buniek. V samostatnej &scaron;t&uacute;dii bolo po&scaron;kodenie z&aacute;rodo&#269;n&yacute;ch buniek v&yacute;raznej&scaron;ie napriek podobn&yacute;m hodnot&aacute;m Sertoliho buniek medzi jedincami infikovan&yacute;mi SARS-CoV-2 a neinfikovan&yacute;mi kontrolami, &#269;o predstavuje priamej&scaron;iu s&uacute;vislos&#357; medzi infekciou a plodnos&#357;ou <sup>[124]<\/sup>. Rozsah, v akom m&ocirc;&#382;e SARS-CoV-2 pretrv&aacute;va&#357; v mu&#382;skom reproduk&#269;nom trakte, sa na&#271;alej sk&uacute;ma. Hoci sa SARS-CoV-2 zistil v &#318;udskom semene, je ot&aacute;zne, &#269;i to predstavuje skuto&#269;n&uacute; infekciu semenn&iacute;kov alebo je to d&ocirc;sledok naru&scaron;enej krvno-epididym&aacute;lnej\/deferentnej bari&eacute;ry <sup>[125,126]<\/sup>.<\/p>\n\n\n\n<p id=\"__p29\">Na&scaron;e poznatky o COVID-19 v reproduk&#269;nom syst&eacute;me &#382;ien s&uacute; st&aacute;le obmedzen&eacute; mno&#382;stvom literat&uacute;ry a ve&#318;kos&#357;ou vzoriek existuj&uacute;cich &scaron;t&uacute;di&iacute;. Napriek tomu je pochopenie rozsahu SARS-CoV-2 v &#382;enskom reproduk&#269;nom trakte nevyhnutn&eacute; na rozpoznanie ak&yacute;chko&#318;vek &scaron;kodliv&yacute;ch vplyvov na plodnos&#357;. ACE2 sa exprimuje vo vaje&#269;n&iacute;koch, oocytoch a maternici, ale obmedzen&aacute; koexpresia prote&aacute;z, ako s&uacute; TMPRSS2 a kateps&iacute;ny L a B, s ACE2 vyvol&aacute;va ot&aacute;zky o pravdepodobnosti infekcie vaje&#269;n&iacute;kov\/ maternice <sup>[127,128]<\/sup>. Zatia&#318; &#269;o v jednej &scaron;t&uacute;dii 35 &#382;ien s diagn&oacute;zou COVID-19 sa SARS-CoV-2 vo vagin&aacute;lnej tekutine ani v exfoliovan&yacute;ch bunk&aacute;ch z kr&#269;ka maternice nezistil, v pr&iacute;padovej &scaron;t&uacute;dii z Talianska sa SARS-CoV-2 zistil vo vagin&aacute;lnej tekutine prostredn&iacute;ctvom RT-PCR (Ct 37,2 na 7. de&#328; a Ct 32,9 na 20. de&#328; od za&#269;iatku pr&iacute;znakov), &#269;o nazna&#269;uje, &#382;e infekcia &#382;ensk&eacute;ho reproduk&#269;n&eacute;ho syst&eacute;mu je mo&#382;n&aacute; <sup>[129,130]<\/sup>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"sec5dot7-viruses-14-00481title\">5.7. Imunologick&aacute; odpove&#271;<\/h3>\n\n\n\n<p id=\"__p30\">FIP je klasicky charakterizovan&aacute; ako imunitne sprostredkovan&eacute; ochorenie na z&aacute;klade skor&yacute;ch pozorovan&iacute; cirkul&aacute;cie komplementu a imunoglobul&iacute;nov, a to aj vo forme imunitn&yacute;ch komplexov <sup>[131]<\/sup>. Boli op&iacute;san&eacute; zlo&#382;ky imunitn&yacute;ch reakci&iacute; typu III a IV <sup>[132]<\/sup>. Predpoklad&aacute; sa, &#382;e vaskulit&iacute;da a vaskulit&iacute;de podobn&eacute; l&eacute;zie zohr&aacute;vaj&uacute; &uacute;lohu pri syst&eacute;mov&yacute;ch komplik&aacute;ci&aacute;ch COVID-19, ktor&eacute; nemo&#382;no vysvetli&#357; priamou org&aacute;novou infekciou, ako je mikrotromb&oacute;za v mozgu, obli&#269;k&aacute;ch, slezine a pe&#269;eni <sup>[133]<\/sup>. V literat&uacute;re o COVID-19 bola identifikovan&aacute; jedna spr&aacute;va o hypersenzitivite typu III <sup>[134]<\/sup>; zd&aacute; sa v&scaron;ak, &#382;e imunitn&eacute; komplexy nehraj&uacute; d&ocirc;le&#382;it&uacute; &uacute;lohu v patol&oacute;gii COVID-19. Mechanizmus v&iacute;rusov&eacute;ho kl&iacute;rensu a z&aacute;palov&eacute; &uacute;&#269;inky imunitnej odpovede s&uacute; d&ocirc;le&#382;it&yacute;mi oblas&#357;ami &scaron;t&uacute;dia v pr&iacute;pade FIP aj COVID-19. Predch&aacute;dzaj&uacute;ca pr&aacute;ca sk&uacute;maj&uacute;ca SARS-CoV preuk&aacute;zala nevyhnutnos&#357; CD4+ T buniek pre kl&iacute;rens v&iacute;rusu <sup>[135,136]<\/sup>. Depl&eacute;cia T-buniek bola uznan&yacute;m d&ocirc;sledkom FCoV a pozorovalo sa, &#382;e s&uacute;vis&iacute; s &#357;a&#382;&scaron;&iacute;mi pr&iacute;padmi COVID-19 <sup>[137,138,139]<\/sup>. Okrem toho sa pri ochoren&iacute; FIP zni&#382;uj&uacute; regula&#269;n&eacute; T bunky aj NK bunky v krvi, mezenterick&yacute;ch lymfatick&yacute;ch uzlin&aacute;ch a slezine <sup>[140]<\/sup>. Vysok&eacute; hladiny IL-6 boli u&#382; sk&ocirc;r preuk&aacute;zan&eacute; v ascite FIP [50] a podobne sa zd&aacute;, &#382;e zv&yacute;&scaron;en&eacute; hladiny IL-6 s&uacute;visia so z&aacute;va&#382;nos&#357;ou ochorenia a jeho v&yacute;sledkom u pacientov s COVID-19 <sup>[141]<\/sup>. Cytok&iacute;nov&aacute; b&uacute;rka, charakterizovan&aacute; nadmernou expresiou z&aacute;palov&yacute;ch cytok&iacute;nov, bola zapojen&aacute; do patogen&eacute;zy oboch infekci&iacute;. Pri FIP sa t&aacute;to patol&oacute;gia sp&aacute;ja s aktiv&aacute;ciou monocytov a makrof&aacute;gov, zatia&#318; &#269;o pri COVID-19 je spojenie s makrof&aacute;gmi a monocytmi menej jasn&eacute; <sup>[142]<\/sup>. Pri zva&#382;ovan&iacute; rovnov&aacute;hy medzi bunkami sprostredkovanou imunitou a humor&aacute;lnou imunitou prv&eacute; spr&aacute;vy nazna&#269;ovali s&uacute;vislos&#357; so silnou humor&aacute;lnou imunitou, ktor&aacute; vedie k FIP <sup>[143]<\/sup>. U pacientov s COVID-19 v&scaron;ak m&ocirc;&#382;e humor&aacute;lna imunita zohr&aacute;va&#357; prospe&scaron;nej&scaron;iu &uacute;lohu <sup>[144]<\/sup>, najm&auml; vzh&#318;adom na potenci&aacute;lny klinick&yacute; pr&iacute;nos konvalescen&#269;nej plazmy\/<a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;&amp;lt;!-- wp:paragraph --&amp;gt;Krvn&eacute; s&eacute;rum je &#382;ltkast&aacute;, tekut&aacute; a nebunkov&aacute; zlo&#382;ka krvi, ktor&aacute; vznik&aacute; po vyzr&aacute;&#382;an&iacute; krvi a n&aacute;slednom odstr&aacute;nen&iacute; krvn&eacute;ho kol&aacute;&#269;a mechanicky a pomocou centrif&uacute;gy. Zlo&#382;en&iacute;m zodpoved&aacute; krvnej plazme, av&scaron;ak na rozdiel od plazmy neobsahuje fibrinog&eacute;n a &#271;al&scaron;ie zr&aacute;&#382;acie faktory krvi.&amp;lt;br\/&amp;gt;&amp;lt;!-- \/wp:paragraph --&amp;gt;&amp;lt;!-- wp:paragraph --&amp;gt;Krv, ktor&aacute; sa odober&aacute; na pr&iacute;pravu s&eacute;ra, sa odober&aacute; do oby&#269;ajn&yacute;ch sk&uacute;maviek alebo strieka&#269;iek bez pridania ak&yacute;chko&#318;vek antikoagulantov (napr. hepar&iacute;n, EDTA). V klinickej a laborat&oacute;rnej praxi sa &#269;asto pou&#382;&iacute;va ozna&#269;enie s&eacute;rum.&amp;lt;br\/&amp;gt;&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/krvne-serum\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">s&eacute;ra<\/a> <sup>[145]<\/sup>.<\/p>\n\n\n\n<p id=\"__p31\">Po&#269;as v&yacute;voja vakc&iacute;ny proti SARS-CoV-2 bol obzvl&aacute;&scaron;&#357; d&ocirc;le&#382;it&yacute; proces posil&#328;ovania infekcie z&aacute;visl&yacute; od protil&aacute;tok (ADE), pri ktorom komplexy v&iacute;rusu a protil&aacute;tok posil&#328;uj&uacute; infekciu. Uk&aacute;zalo sa, &#382;e FIPV vykazuje ADE v pr&iacute;tomnosti protil&aacute;tok proti FIPV <sup>[146]<\/sup>. Zd&aacute; sa, &#382;e toto zosilnenie infekcie je &scaron;pecifick&eacute; pre s&eacute;rotyp, pri&#269;om pas&iacute;vna imuniz&aacute;cia ma&#269;iek proti FIPV typu I alebo typu II vedie k ADE a&#382; po napadnut&iacute; t&yacute;m ist&yacute;m s&eacute;rotypom, pre ktor&yacute; bola vykonan&aacute; imuniz&aacute;cia <sup>[147]<\/sup>. V d&ocirc;sledku toho je ADE v&yacute;znamnou v&yacute;zvou smerom k v&yacute;voju vakc&iacute;n proti FIP. Pri ochoreniach sp&ocirc;soben&yacute;ch &#318;udsk&yacute;mi koronav&iacute;rusmi sa ADE e&scaron;te len mus&iacute; &uacute;plne pochopi&#357;. Pri SARS-CoV sa zistilo, &#382;e vy&scaron;&scaron;ie koncentr&aacute;cie anti-spike protil&aacute;tok maj&uacute; vy&scaron;&scaron;&iacute; neutraliza&#269;n&yacute; &uacute;&#269;inok, zatia&#318; &#269;o sa predpoklad&aacute;, &#382;e zriedenej&scaron;ie koncentr&aacute;cie prispievaj&uacute; k ADE <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;in vitro - lat. &amp;quot;V skle&amp;quot; tj. V sk&uacute;mavke, za umel&yacute;ch, laborat&oacute;rnych podmienok. Napr. pri testovan&iacute; &uacute;&#269;inkov chemick&yacute;ch l&aacute;tok na &#382;iv&yacute; organizmus s&uacute; &uacute;&#269;inky sk&uacute;man&eacute; najprv na kult&uacute;re buniek pestovan&yacute;ch v sk&uacute;mavke. In&yacute;m pr&iacute;kladom je oplodnenie in vitro &amp;quot;die&#357;a zo sk&uacute;mavky&amp;quot;, IVF. Porov. in vivo lat. in v; VITRUM sklo&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/in-vitro\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">in vitro<\/a> <sup>[148]<\/sup>. Pri SARS-CoV-2 sa ADE pozorovala v monocytov&yacute;ch l&iacute;ni&aacute;ch, ale nes&uacute;visela s regul&aacute;ciou proz&aacute;palov&yacute;ch cytok&iacute;nov <sup>[149]<\/sup>. Modelovanie sekvenci&iacute; hrotov&yacute;ch prote&iacute;nov identifikovalo mo&#382;n&eacute; mechanizmy ADE, ktor&eacute; zah&#341;&#328;aj&uacute; interakciu s receptormi Fc na monocytoch a tukov&yacute;ch bunk&aacute;ch <sup>[150]<\/sup>. Ak by ADE zohr&aacute;vala &uacute;lohu pri SARS-CoV-2, najpravdepodobnej&scaron;&iacute;m mechanizmom by bola nadmern&aacute; aktiv&aacute;cia imunitnej kask&aacute;dy prostredn&iacute;ctvom aktiv&aacute;cie buniek vrodenej imunity sprostredkovanej Fc <sup>[151,152]<\/sup>. V s&uacute;&#269;asnosti neexistuje dostatok d&ocirc;kazov poukazuj&uacute;cich na ADE s patogen&eacute;zou SARS-CoV-2 a na vyhodnotenie skuto&#269;n&eacute;ho rozsahu rizika je potrebn&yacute; &#271;al&scaron;&iacute; v&yacute;skum.<\/p>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\" id=\"sec6-viruses-14-00481title\">6. Molekul&aacute;rne podobnosti medzi hrotov&yacute;mi prote&iacute;nmi FCoV a SARS-CoV-2<\/h2>\n\n\n\n<p>V&iacute;rusov&yacute; hrotov&yacute; (spike) prote&iacute;n je hlavn&yacute;m faktorom tkanivov&eacute;ho a bunkov&eacute;ho tropizmu a via&#382;e bunkov&yacute; receptor <sup>[153]<\/sup>. V s&uacute;&#269;asnosti je dobre zn&aacute;me, &#382;e SARS-CoV-2 via&#382;e angiotenz&iacute;n konvertuj&uacute;ci enz&yacute;m-2 (ACE-2) ako prim&aacute;rny receptor, &#269;o je spolo&#269;n&aacute; vlastnos&#357; so SARS-CoV. Pre SARS-CoV-2 existuj&uacute; aj in&iacute; v&auml;zbov&iacute; partneri vr&aacute;tane heparan sulf&aacute;tu ako ne&scaron;pecifickej v&auml;zby a neuropil&iacute;nu-1 (NRP-1), &#269;o m&ocirc;&#382;e by&#357; pr&iacute;&#269;inou tropizmu v&iacute;rusu pre &#269;uchov&yacute; a centr&aacute;lny nervov&yacute; syst&eacute;m <sup>[154,155]<\/sup>. Naopak, v&auml;&#269;&scaron;ina alfakornav&iacute;rusov vr&aacute;tane FCoV typu II vyu&#382;&iacute;va na vstup v&iacute;rusu aminopeptid&aacute;zy (APN) <sup>[9,153,156]<\/sup>. Receptor pre FCoV typu I je potrebn&eacute; e&scaron;te objasni&#357;. Hrotov&yacute; prote&iacute;n tie&#382; sprostredk&uacute;va f&uacute;ziu membr&aacute;n, ktor&aacute; sa aktivuje zlo&#382;it&yacute;m procesom riaden&yacute;m prote&aacute;zami hostite&#318;skej bunky <sup>[153]<\/sup>. Zatia&#318; &#269;o FCoV typu I m&aacute; dve miesta aktiv&aacute;cie &scaron;tiepenia prote&aacute;zou, ozna&#269;en&eacute; S1\/S2 a S2&prime;, FCoV typu II m&aacute; len jedno miesto aktiv&aacute;cie &scaron;tiepenia (S2&prime;) <sup>[10]<\/sup>. Na porovnanie, SARS-CoV-2 je podobn&yacute; FCoV-1 (a v s&uacute;&#269;asnosti jedine&#269;n&yacute; pre v&iacute;rusy s&uacute;visiace so SARS) v tom, &#382;e m&aacute; dve identifikovan&eacute; &scaron;tiepne miesta (S1\/S2 a S2&prime;), pri&#269;om prv&eacute; z nich, fur&iacute;nov&eacute; &scaron;tiepne miesto alebo FCS, sa pova&#382;uje za v&yacute;znamn&yacute; faktor pandemick&eacute;ho &scaron;&iacute;renia <sup>[157,158,159]<\/sup>. V oboch pr&iacute;padoch pr&iacute;tomnos&#357; &scaron;tiepnych miest S1\/S2 odli&scaron;uje FCoV-1 a SARS-CoV-2 od ich bl&iacute;zkych pr&iacute;buzn&yacute;ch. Zd&aacute; sa, &#382;e v&yacute;znam aktiva&#269;n&eacute;ho miesta &scaron;tiepenia priamo s&uacute;vis&iacute; s prote&aacute;zami potrebn&yacute;mi na v&iacute;rusov&uacute; infekciu, a teda s &#271;al&scaron;ou zlo&#382;kou tkanivov&eacute;ho tropizmu. Pri FCoV typu I sa prechod od FECV k makrof&aacute;govo tropick&eacute;mu FIPV prv&yacute;kr&aacute;t preuk&aacute;zal pomocou aminokyselinov&yacute;ch substit&uacute;ci&iacute; v mieste &scaron;tiepenia S1\/S2 na patologick&yacute;ch vzork&aacute;ch potvrden&yacute;ch FIP, ktor&eacute; pod&#318;a predpokladov zni&#382;uj&uacute; proteolytick&yacute; priming fur&iacute;nu podobn&yacute;mi prote&aacute;zami pred aktiv&aacute;ciou f&uacute;zneho procesu sprostredkovan&eacute;ho S2&prime;<sup> [72,160,161]<\/sup>. Pri SARS-CoV-2 s&uacute; TMPRSS-2 alebo in&eacute; pr&iacute;buzn&eacute; tryps&iacute;nu podobn&eacute; prote&aacute;zy hlavn&yacute;m aktiv&aacute;torom f&uacute;zie a vstupu na S2&prime; <sup>[162]<\/sup> (tabu&#318;ka 1), pri&#269;om fur&iacute;nu podobn&eacute; prote&aacute;zy primuj&uacute; hrot a S1\/S2 <sup>[163]<\/sup> a najm&auml; sa uk&aacute;zalo, &#382;e s&uacute; r&yacute;chlo regulovan&eacute; po adapt&aacute;cii na bunky Vero E6 v kult&uacute;re a pravdepodobne aj v mimop&#318;&uacute;cnych &#318;udsk&yacute;ch tkaniv&aacute;ch<sup> [164]<\/sup>. Zd&aacute; sa teda, &#382;e medzi t&yacute;mito dvoma v&iacute;rusmi existuj&uacute; pozoruhodn&eacute; podobnosti v adapt&aacute;cii hostite&#318;sk&yacute;ch buniek.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes lm-back has-small-font-size\"><table><thead><tr><th>V&iacute;rus<\/th><th>Skupina<\/th><th>Receptor<\/th><th>Konsenzu&aacute;lna sekvencia S1\/S2 v cirkuluj&uacute;cich v&iacute;rusoch<\/th><th>Konsenzu&aacute;lna sekvencia S2&prime; v cirkuluj&uacute;cich v&iacute;rusoch<\/th><\/tr><\/thead><tbody><tr><td>SARS-CoV-2<\/td><td>Betakoronav&iacute;rus<\/td><td>ACE2<\/td><td>SPRRAR|S<br>(*SHRRAR|S a SRRRAR|S)<\/td><td>SKPSKR|S<\/td><\/tr><tr><td>FCoV-1<\/td><td>Alfakoronav&iacute;rus (&bdquo;<a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;Klad (z angl. clade, resp. z &#345;ec. klados = v&#283;tev) je ozna&#269;en&iacute; pro skupinu organism&#367;, kter&aacute; zahrnuje spole&#269;n&eacute;ho p&#345;edka a v&scaron;echny z n&#283;ho vze&scaron;l&eacute; potomky.&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/klad\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">klad<\/a> A&ldquo;)<\/td><td>nezn&aacute;my<\/td><td>SRRSRR|S (u FECV; mutovan&yacute; u FIPV)<\/td><td>KR|S<\/td><\/tr><tr><td>FCoV-2<\/td><td>Alphacoronavirus (&bdquo;klad B&ldquo;)<\/td><td>APN<\/td><td>nepr&iacute;tomn&yacute;<\/td><td>YRKR|S<\/td><\/tr><\/tbody><\/table><figcaption><strong>Tabu&#318;ka 1<\/strong><br>Zhrnutie SARS-CoV-2 a dvoch s&eacute;rotypov FCoV. Hrotov&yacute; glykoprote&iacute;n koronav&iacute;rusov, sprostredkovan&yacute; proteolytick&yacute;m &scaron;tiepen&iacute;m, je hlavnou hnacou silou v&auml;zby na bunkov&yacute; receptor a membr&aacute;novej f&uacute;zie. Taxonomick&aacute; klasifik&aacute;cia, hostite&#318;sk&yacute; receptor a aminokyselinov&eacute; sekvencie proteolytick&eacute;ho &scaron;tiepneho miesta S1\/S2 a S2&prime; s&uacute; zhrnut&eacute; ni&#382;&scaron;ie.<br>*, Nahraden&aacute; v be&#382;n&yacute;ch variantoch.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\" id=\"__sec1title\">7. Prevencia a lie&#269;ba: Od soci&aacute;lneho odstupu k vakc&iacute;nam<\/h2>\n\n\n\n<p id=\"__p33\">Doteraz bola &uacute;loha opatren&iacute; v oblasti zdravia obyvate&#318;stva\/verejn&eacute;ho zdravia hlavnou hnacou silou pri zmier&#328;ovan&iacute; &scaron;&iacute;renia FCoV aj SARS-CoV-2 <sup>[3,31,165,166]<\/sup>. V tomto oh&#318;ade sa pre postihnut&eacute; obyvate&#318;stvo zaviedlo mnoho opatren&iacute; na zn&iacute;&#382;enie soci&aacute;lneho odstupu vr&aacute;tane pr&iacute;kazov zosta&#357; doma, zatvorenia prev&aacute;dzok, ktor&eacute; nie s&uacute; nevyhnutn&eacute;, a obmedzenia verejn&yacute;ch zhroma&#382;den&iacute;<sup> [167]<\/sup>. Aj ke&#271; sa neozna&#269;uj&uacute; ako soci&aacute;lny di&scaron;tanc, podobn&eacute; met&oacute;dy sa &#269;asto zav&aacute;dzaj&uacute; alebo odpor&uacute;&#269;aj&uacute; aj v popul&aacute;ci&aacute;ch ma&#269;iek <sup>[3]<\/sup>. Dreschler a kol. sumarizuj&uacute; met&oacute;dy, ktor&eacute; boli odpor&uacute;&#269;an&eacute; v popul&aacute;ci&aacute;ch ma&#269;iek, najm&auml; v prostred&iacute; s viacer&yacute;mi ma&#269;kami, vr&aacute;tane zn&iacute;&#382;enia po&#269;tu ma&#269;iek v jednej miestnosti, &#269;ast&eacute;ho &#269;istenia klietok a zoskupovania ma&#269;iek pod&#318;a vylu&#269;ovania a\/alebo s&eacute;rologick&eacute;ho stavu <sup>[168]<\/sup>. Dreschler uv&aacute;dza, &#382;e karant&eacute;na ma&#269;iek vystaven&yacute;ch FCoV\/FIPV s cie&#318;om obmedzi&#357; &scaron;&iacute;renie FCoV v popul&aacute;cii nie je ani &uacute;&#269;inn&aacute;, ani v&yacute;hodn&aacute; vzh&#318;adom na pravdepodobnos&#357; rozsiahlej infekcie FCoV v prostred&iacute; s viacer&yacute;mi ma&#269;kami, ako aj na mesiace, ktor&eacute; s&uacute; potrebn&eacute; na rozvoj (a neistotu pri rozvoji) FIP. Naopak, karant&eacute;na os&ocirc;b vystaven&yacute;ch SARS-CoV-2 m&aacute; potenci&aacute;l zn&iacute;&#382;i&#357; &scaron;&iacute;renie choroby a &uacute;mrtnos&#357; <sup>[169]<\/sup>. Bez oh&#318;adu na rozsah zoskupenia alebo oddelenia je potrebn&eacute; starostlivo zv&aacute;&#382;i&#357; u ma&#269;iek aj u &#318;ud&iacute; soci&aacute;lne &#357;a&#382;kosti, ktor&eacute; sp&ocirc;sobuje oddelenie. V pr&iacute;pade ma&#269;iek, najm&auml; v s&uacute;vislosti s pred&#269;asn&yacute;m odstaven&iacute;m od ich matiek, sa mus&iacute; v procese odstavenia venova&#357; osobitn&aacute; pozornos&#357; zabezpe&#269;eniu primeranej socializ&aacute;cie ma&#269;iatok. Podobne aj v pr&iacute;pade COVID-19 m&ocirc;&#382;e by&#357; proces karant&eacute;ny a\/alebo izol&aacute;cie pre jednotlivcov psychicky za&#357;a&#382;uj&uacute;ci. &#268;asto sa mus&iacute; vykon&aacute;va&#357; d&ocirc;kladn&aacute; anal&yacute;za n&aacute;kladov a pr&iacute;nosov, aby sa porovnali pr&iacute;nosy karant&eacute;ny a izol&aacute;cie pre verejn&eacute; zdravie s negat&iacute;vnou psychickou z&aacute;&#357;a&#382;ou pre osoby, na ktor&eacute; sa vz&#357;ahuje, aby sa zabr&aacute;nilo zbyto&#269;nej\/ne&uacute;&#269;innej karant&eacute;ne. V pr&iacute;pade potreby by sa malo poskytn&uacute;&#357; od&ocirc;vodnenie, ako aj podpora na zlep&scaron;enie pohody <sup>[170]<\/sup>.<\/p>\n\n\n\n<p id=\"__p34\">Hoci je vakc&iacute;na proti FIP komer&#269;ne dostupn&aacute; (Primucell), pr&iacute;nos o&#269;kovania proti FIP je st&aacute;le n&iacute;zky. Primucell je intranaz&aacute;lna vakc&iacute;na, ktor&aacute; pou&#382;&iacute;va oslaben&yacute; izol&aacute;t s&eacute;rotypu 2 FIPV Hoci je vakc&iacute;na proti FIP komer&#269;ne dostupn&aacute; (Primucell), pr&iacute;nos o&#269;kovania proti FIP je st&aacute;le n&iacute;zky. Primucell je intranaz&aacute;lna vakc&iacute;na, ktor&aacute; pou&#382;&iacute;va oslaben&yacute; izol&aacute;t s&eacute;rotypu 2 FIPV (FIPV-DF2), pod&aacute;van&yacute; v dvoch d&aacute;vkach s odstupom 3 a&#382; 4 t&yacute;&#382;d&#328;ov ma&#269;k&aacute;m vo veku najmenej 16 t&yacute;&#382;d&#328;ov <sup>[171]<\/sup>. V placebom kontrolovanej experiment&aacute;lnej &scaron;t&uacute;dii na 138 ma&#269;k&aacute;ch vakcinovan&eacute; ma&#269;ky nevykazovali signifikantne ni&#382;&scaron;&iacute; v&yacute;skyt FIP v porovnan&iacute; s kontrolami po&#269;as dvan&aacute;s&#357;mesa&#269;n&eacute;ho sledovan&eacute;ho obdobia &scaron;t&uacute;die. Po &uacute;prave na titre FCoV mali ma&#269;ky s ni&#382;&scaron;&iacute;mi titrami protil&aacute;tok (100 alebo menej) v &#269;ase prvej vakcin&aacute;cie v porovnan&iacute; s ma&#269;kami s vy&scaron;&scaron;&iacute;mi titrami (400 alebo viac) v&yacute;znamne ni&#382;&scaron;&iacute; v&yacute;skyt FIP <sup>[172]<\/sup>. Vzh&#318;adom na vysok&uacute; prevalenciu FCoV, najm&auml; v prostred&iacute; s viacer&yacute;mi ma&#269;kami, v&scaron;ak pokusy o zmiernenie v&yacute;skytu FIP prostredn&iacute;ctvom vakcin&aacute;cie ma&#269;iek, ktor&eacute; s&uacute; FCoV-naivn&eacute; vo veku najmenej 16 t&yacute;&#382;d&#328;ov, m&ocirc;&#382;u by&#357; nerealizovate&#318;n&eacute; vzh&#318;adom na vysok&yacute; potenci&aacute;l infekcie FCoV po&#269;as 16 t&yacute;&#382;d&#328;ov pred vhodnos&#357;ou vakcin&aacute;cie. V d&ocirc;sledku toho Americk&aacute; asoci&aacute;cia nemocn&iacute;c pre zvierat&aacute; a Americk&aacute; asoci&aacute;cia praktick&yacute;ch lek&aacute;rov pre ma&#269;ky vakcin&aacute;ciu proti FIP neodpor&uacute;&#269;a <sup>[173]<\/sup>.<\/p>\n\n\n\n<p id=\"__p35\">ADE zost&aacute;va hlavn&yacute;m probl&eacute;mom vakc&iacute;n proti FIP. Nieko&#318;ko &scaron;t&uacute;di&iacute; sa pok&uacute;silo zn&iacute;&#382;i&#357; v&yacute;skyt FIP u experiment&aacute;lne infikovan&yacute;ch ma&#269;iek rekombinantn&yacute;mi a in&yacute;mi experiment&aacute;lnymi vakc&iacute;nami, ale opakovane sa uv&aacute;dza ADE. V jednej placebom kontrolovanej &scaron;t&uacute;dii, v ktorej boli &#269;istokrvn&eacute; britsk&eacute; kr&aacute;tkosrst&eacute; ma&#269;ky a dom&aacute;ce kr&aacute;tkosrst&eacute; ma&#269;ky bez &scaron;pecifick&yacute;ch patog&eacute;nov (SPF) vakcinovan&eacute; jednou z dvoch rekombinantn&yacute;ch vakc&iacute;n proti FIPV typu 2 (FIPV-DF2), vykazovali obe kandid&aacute;tske vakc&iacute;ny v&yacute;razne zn&iacute;&#382;en&uacute; a&#382; &#382;iadnu ochranu pred v&yacute;zvou FIPV u ne-SPF ma&#269;iek &ndash; pri&#269;om v&auml;&#269;&scaron;ina ne-SPF zvierat vykazovala ADE <sup>[174]<\/sup>. V samostatnej &scaron;t&uacute;dii imuniz&aacute;cia ma&#269;iatok vakc&iacute;nov&yacute;m v&iacute;rusom rekombinovan&yacute;m s g&eacute;nom pre hrotov&yacute; glykoprote&iacute;n FIPV v&yacute;znamne skr&aacute;tila &#269;as pre&#382;itia po v&yacute;zve FIPV v porovnan&iacute; s ma&#269;iatkami imunizovan&yacute;mi vakc&iacute;nov&yacute;m v&iacute;rusom pr&iacute;rodn&eacute;ho typu. D&ocirc;le&#382;it&eacute; je, &#382;e v skupine imunizovanej proti FIPV sa pozorovali n&iacute;zke hladiny neutraliza&#269;n&yacute;ch protil&aacute;tok <sup>[175]<\/sup>. Obavy z ADE po imuniz&aacute;cii FIPV zost&aacute;vaj&uacute; zlo&#382;itou v&yacute;zvou v prevencii FIP.<\/p>\n\n\n\n<p id=\"__p36\">Vakc&iacute;ny COVID-19, na rozdiel od o&#269;kovania proti FIP, zohrali v&yacute;znamnej&scaron;iu &uacute;lohu pri zmier&#328;ovan&iacute; &scaron;&iacute;renia infekcie. Bolo vyroben&yacute;ch nieko&#318;ko typov vakc&iacute;n, ktor&eacute; preuk&aacute;zali bezpe&#269;nos&#357; a &uacute;&#269;innos&#357; pri prevencii symptomatickej infekcie, z&aacute;va&#382;n&eacute;ho ochorenia a &uacute;mrtia na COVID-19 &ndash; okrem in&eacute;ho vr&aacute;tane mRNA vakc&iacute;n (Pfizer\/BioNTech a Moderna), v&iacute;rusov&yacute;ch vektorov&yacute;ch vakc&iacute;n (Janssen, AstraZeneca) a inaktivovan&yacute;ch v&iacute;rusov&yacute;ch vakc&iacute;n (Bharat Biotech, Sinovac) <sup>[176,177,178,179,180,181]<\/sup>. Prv&eacute; dve vakcina&#269;n&eacute; platformy pou&#382;&iacute;vaj&uacute; ako imunog&eacute;n glykoprote&iacute;n hrotu SARS-CoV-2, zatia&#318; &#269;o vakc&iacute;ny s inaktivovan&yacute;m v&iacute;rusom maj&uacute; potenci&aacute;l vyvola&#357; imunitn&uacute; odpove&#271; aj na in&eacute; v&iacute;rusov&eacute; zlo&#382;ky okrem hrotov&eacute;ho glykoprote&iacute;nu. Napriek priazniv&eacute;mu bezpe&#269;nostn&eacute;mu profilu vakc&iacute;n COVID-19 sa po o&#269;kovan&iacute; vyskytli ne&#382;iaduce reakcie, z ktor&yacute;ch niektor&eacute; boli sprostredkovan&eacute; protil&aacute;tkami analogicky k obav&aacute;m z ADE pri vakc&iacute;nach FIP. Tromb&oacute;za bola zdokumentovan&yacute;m probl&eacute;mom najm&auml; pri vakc&iacute;nach AstraZeneca, ako aj Janssen. Hoci sa presn&eacute; mechanizmy sk&uacute;maj&uacute;, v s&uacute;&#269;asnosti sa predpoklad&aacute;, &#382;e z&aacute;palov&aacute; reakcia vedie k zv&yacute;&scaron;en&yacute;m hladin&aacute;m protil&aacute;tok aktivuj&uacute;cich krvn&eacute; do&scaron;ti&#269;ky, ktor&eacute; sa via&#382;u na faktor 4 krvn&yacute;ch do&scaron;ti&#269;iek a ved&uacute; k hyperkoagula&#269;n&eacute;mu stavu<sup> [182,183]<\/sup>. Na rozdiel od vy&scaron;&scaron;ieho v&yacute;skytu ADE pri experiment&aacute;lnych vakc&iacute;nach FIP je v&yacute;skyt trombotick&yacute;ch pr&iacute;hod po podan&iacute; vakc&iacute;ny COVID-19 n&iacute;zky <sup>[184]<\/sup>.<\/p>\n\n\n\n<p id=\"__p37\">Okrem prim&aacute;rnych kone&#269;n&yacute;ch cie&#318;ov &scaron;t&uacute;di&iacute; vakc&iacute;n, ktor&eacute; sa s&uacute;stre&#271;ovali na prevenciu symptomatickej infekcie, z&aacute;va&#382;n&eacute;ho ochorenia a &uacute;mrtia na COVID-19, sa mnoh&eacute; &scaron;t&uacute;die vakc&iacute;n f&aacute;zy 3 nezaoberali pozorovan&iacute;m s cie&#318;om pos&uacute;di&#357; stupe&#328; prevencie asymptomatickej infekcie. Priazniv&aacute; &uacute;&#269;innos&#357; proti asymptomatickej infekcii je d&ocirc;le&#382;it&aacute; z h&#318;adiska verejn&eacute;ho zdravia, najm&auml; vzh&#318;adom na to, &#382;e asymptomatick&iacute; jedinci m&ocirc;&#382;u pren&aacute;&scaron;a&#357; COVID-19 a &#382;e rutinn&eacute; monitorovacie testovanie je n&aacute;ro&#269;n&eacute; na zdroje a &#357;a&#382;ko sa koordinuje vo ve&#318;kom rozsahu <sup>[22]<\/sup>. D&ocirc;le&#382;it&yacute;m pr&iacute;nosom smerom k tejto oblasti s&uacute; re&aacute;lne &scaron;t&uacute;die, ktor&eacute; sk&uacute;maj&uacute; &uacute;&#269;innos&#357; vakc&iacute;ny, ktor&eacute; poukazuj&uacute; na zn&iacute;&#382;en&eacute; riziko infekcie SARS-CoV-2, ako aj na zn&iacute;&#382;en&uacute; v&iacute;rusov&uacute; z&aacute;&#357;a&#382; pri vakc&iacute;nov&yacute;ch &bdquo;prelomov&yacute;ch&ldquo; infekci&aacute;ch <sup>[185,186,187,188]<\/sup>. Tak&eacute;to d&ocirc;kazy podporuj&uacute; pou&#382;&iacute;vanie vakc&iacute;n proti SARS-CoV-2 ako ochrann&eacute;ho opatrenia nielen proti z&aacute;va&#382;n&eacute;mu COVID-19, ale aj ako rozhoduj&uacute;ceho pr&iacute;nosu pri zvl&aacute;dan&iacute; v&yacute;skytu ochorenia.<\/p>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\" id=\"sec8-viruses-14-00481title\">8. Klinick&aacute; starostlivos&#357; a terapeutick&eacute; mo&#382;nosti<\/h2>\n\n\n\n<p>V roku 1963, ke&#271; boli op&iacute;san&eacute; prv&eacute; klinick&eacute; pr&iacute;pady FIP (pred poznan&iacute;m v&iacute;rusovej <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;&amp;lt;!-- wp:paragraph --&amp;gt;N&aacute;uka o pr&iacute;&#269;in&aacute;ch javov, chor&ocirc;b a pod.&amp;lt;br\/&amp;gt;&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/etiologia\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">etiol&oacute;gie<\/a>), sa zistilo, &#382;e sa &#269;asto sk&uacute;&scaron;ala antibiotick&aacute; lie&#269;ba, ktor&aacute; v&scaron;ak zjavne nepriniesla &#382;iadny &uacute;&#382;itok <sup>[189]<\/sup>. Od tejto prvej spr&aacute;vy a bez &uacute;&#269;innej vakc&iacute;ny sa u ma&#269;iek s FIP vysk&uacute;&scaron;alo mno&#382;stvo terapi&iacute;. Ribavir&iacute;n, nukleozidov&yacute; anal&oacute;g, predt&yacute;m poskytol s&#318;ubn&eacute; v&yacute;sledky proti FCoV pri sk&uacute;man&iacute; in vitro <sup>[190]<\/sup>, av&scaron;ak pri pod&aacute;van&iacute; ma&#269;k&aacute;m ako experiment&aacute;lna lie&#269;ba viedol v niektor&yacute;ch pr&iacute;padoch k hor&scaron;&iacute;m v&yacute;sledkom <sup>[191]<\/sup>. Podobne sa na za&#269;iatku pand&eacute;mie COVID-19 ribavir&iacute;n vyu&#382;&iacute;val v nieko&#318;k&yacute;ch d&aacute;vkach a v kombin&aacute;cii s &#271;al&scaron;&iacute;mi liekmi <sup>[192]<\/sup> a bol navrhnut&yacute; protokol &scaron;t&uacute;die na sk&uacute;manie pr&iacute;nosu u &#318;udsk&yacute;ch pacientov <sup>[193]<\/sup>. V lie&#269;be hospitalizovan&yacute;ch pacientov s COVID-19 sa v&scaron;ak r&yacute;chlo dostal do popredia in&yacute; priamo p&ocirc;sobiaci antiv&iacute;rusov&yacute; liek (DAA) (remdesivir), nukleozidov&yacute; anal&oacute;g, ktor&yacute; p&ocirc;sob&iacute; ako termin&aacute;tor re&#357;azca a v porovnan&iacute; s ribavir&iacute;nom vyvol&aacute;va men&scaron;ie obavy z toxicity, pri&#269;om sa pou&#382;&iacute;va v injek&#269;nej forme. Napriek po&#269;iato&#269;n&eacute;mu nad&scaron;eniu sa remdesivir nepreuk&aacute;zal ako &uacute;&#269;inn&yacute; u pacientov s tak&yacute;mito ochoreniami v robustn&yacute;ch klinick&yacute;ch sk&uacute;&scaron;kach; nieko&#318;ko spr&aacute;v v&scaron;ak preuk&aacute;zalo klinick&yacute; pr&iacute;nos pr&iacute;buzn&eacute;ho nukleozidov&eacute;ho anal&oacute;gu GS-441524 pri lie&#269;be ma&#269;iek s FIP vr&aacute;tane efuz&iacute;vnych, neefuz&iacute;vnych a neurologick&yacute;ch foriem ochorenia <sup>[194,195,196,197]<\/sup>. V &#269;ase p&iacute;sania tejto spr&aacute;vy sa v Austr&aacute;lii a Spojenom kr&aacute;&#318;ovstve uskuto&#269;&#328;uj&uacute; v&yacute;skumy &uacute;&#269;innosti remdesiviru pri lie&#269;be FIP. Je zauj&iacute;mav&eacute;, &#382;e remdesivir je proliekov&aacute; forma lieku GS-441524 [195]. Ned&aacute;vno sa do klinick&yacute;ch testov pre COVID-19 dostali dve peror&aacute;lne dostupn&eacute; DAA, ktor&eacute; v s&uacute;&#269;asnosti &#269;akaj&uacute; na schv&aacute;lenie FDA; molnupiravir (MK-4482\/EIDD-2801), modifikovan&aacute; forma ribavir&iacute;nu, a Paxlovid (<a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;L&aacute;tka v&yacute;razne spoma&#318;uj&uacute;ca alebo zastavuj&uacute;ca reakciu.&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/inhibitor\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">inhib&iacute;tor<\/a> prote&aacute;zy PF-07321332 v kombin&aacute;cii s ritonavirom, ktor&yacute; zlep&scaron;uje pol&#269;as PF-07321332) zameran&yacute; na hlavn&uacute; prote&aacute;zu (Mpro). Je pozoruhodn&eacute;, &#382;e &uacute;&#269;inn&aacute; l&aacute;tka Paxlovidu je pr&iacute;buzn&aacute; GC-376 a predt&yacute;m sa uk&aacute;zala ako &uacute;&#269;inn&aacute; v klinickej &scaron;t&uacute;dii FIP <sup>[196]<\/sup>. Bude ve&#318;mi zauj&iacute;mav&eacute; sledova&#357; priebeh v&yacute;voja, schva&#318;ovania FDA a pou&#382;&iacute;vania t&yacute;chto DAA v s&uacute;vislosti s pr&iacute;slu&scaron;n&yacute;mi ochoreniami sp&ocirc;soben&yacute;mi SARS-CoV-2 a FCoV.<\/p>\n\n\n\n<p id=\"__p39\">Vzh&#318;adom na z&aacute;palov&uacute; povahu FIP aj COVID-19 sa lie&#269;ba &#269;asto zameriava na kontrolu imunitnej reakcie. Hoci sa ma&#269;k&aacute;m s FIP &#269;asto pod&aacute;vaj&uacute; glukokortikoidy v snahe zmierni&#357; z&aacute;palov&eacute; prejavy ochorenia, klinick&yacute; pr&iacute;nos je zanedbate&#318;n&yacute; <sup>[198]<\/sup>. Zd&aacute; sa, &#382;e pou&#382;&iacute;vanie kortikosteroidov u pacientov s COVID-19 nie je bezv&yacute;znamn&eacute;, pri&#269;om niektor&eacute; &scaron;t&uacute;die vykazuj&uacute; negat&iacute;vne profily <sup>[199]<\/sup>. Ich pod&aacute;vanie v&scaron;ak m&ocirc;&#382;e by&#357; pr&iacute;nosom v &#357;a&#382;k&yacute;ch pr&iacute;padoch COVID-19 prostredn&iacute;ctvom pozorovan&eacute;ho zn&iacute;&#382;enia &uacute;mrtnosti <sup>[200,201]<\/sup>. Cyklospor&iacute;n, imunosupres&iacute;vny liek, ktor&yacute; sa &#269;asto pou&#382;&iacute;va na prevenciu odmietnutia org&aacute;nov u pacientov po transplant&aacute;cii a na lie&#269;bu niektor&yacute;ch autoimunitn&yacute;ch ochoren&iacute;, sa sk&uacute;mal pri FIP aj SARS-CoV-2. &Scaron;t&uacute;dia in vitro s cyklospor&iacute;nom A (CsA) s pou&#382;it&iacute;m v&iacute;rusu FCoV typu II preuk&aacute;zala zn&iacute;&#382;enie replik&aacute;cie v&iacute;rusu<sup> [202]<\/sup>, pri&#269;om lie&#269;ba 14-ro&#269;nej ma&#269;ky CsA po ne&uacute;spe&scaron;nej lie&#269;be IFN viedla ku klinick&eacute;mu zlep&scaron;eniu, zn&iacute;&#382;eniu v&iacute;rusovej z&aacute;&#357;a&#382;e a &#269;asu pre&#382;itia viac ako 260 dn&iacute; <sup>[203]<\/sup>. Hoci v s&uacute;&#269;asnosti neexistuj&uacute; &#382;iadne kontrolovan&eacute; &scaron;t&uacute;die t&yacute;kaj&uacute;ce sa pou&#382;itia CsA pri lie&#269;be pacientov s COVID-19, okrem ot&aacute;zok t&yacute;kaj&uacute;cich sa bezpe&#269;nosti boli nazna&#269;en&eacute; aj potenci&aacute;lne mechanizmy &uacute;&#269;inku <sup>[204,205,206]<\/sup>. Okrem toho anal&oacute;g cyklospor&iacute;nu A, alisporivir, preuk&aacute;zal in vitro &uacute;&#269;inky na replik&aacute;ciu v&iacute;rusu <sup>[207]<\/sup>, podobne ako d&ocirc;kazy, ktor&eacute; ukazuj&uacute;, &#382;e replik&aacute;ciu in&yacute;ch koronav&iacute;rusov brzd&iacute; blokovanie cyklofil&iacute;nu A <sup>[208]<\/sup>.<\/p>\n\n\n\n<p id=\"__p40\">Pri FIP aj COVID-19 sa predpisovali mnoh&eacute; antibiotik&aacute;, ale nie pre ich antimikrobi&aacute;lne vlastnosti, ako sk&ocirc;r pre protiz&aacute;palov&eacute; &uacute;&#269;inky <sup>[198]<\/sup>. Doxycykl&iacute;n napr&iacute;klad mohol pom&ocirc;c&#357; pri pred&#314;&#382;en&iacute; pre&#382;&iacute;vania u ma&#269;ky s FIP<sup> [209]<\/sup>. &#268;i by doxycykl&iacute;n znamenal pr&iacute;nos pre pacientov s COVID-19, nie je v s&uacute;&#269;asnosti zn&aacute;me, ale bol navrhnut&yacute; ako mo&#382;n&aacute; s&uacute;&#269;as&#357; lie&#269;by ochorenia <sup>[210]<\/sup>.<\/p>\n\n\n\n<p id=\"__p41\">Interfer&oacute;ny boli predmetom v&yacute;skumu aj pri lie&#269;be FIP bez jasnej s&uacute;vislosti s klinick&yacute;m zlep&scaron;en&iacute;m<sup> [211]<\/sup>. U &#318;udsk&yacute;ch pacientov s COVID-19 bola kombinovan&aacute; lie&#269;ba interfer&oacute;nom-&beta;-1b s lopinavirom, ritonavirom a ribavir&iacute;nom v porovnan&iacute; len s lopinavirom a ritonavirom spojen&aacute; so zn&iacute;&#382;enou d&#314;&#382;kou vylu&#269;ovania v&iacute;rusu a zlep&scaron;en&iacute;m klinick&yacute;ch v&yacute;sledkov v miernych a&#382; stredne &#357;a&#382;k&yacute;ch pr&iacute;padoch<sup> [212]<\/sup>.<\/p>\n\n\n\n<p id=\"__p42\">Monoklon&aacute;lne protil&aacute;tky zameran&eacute; na zlo&#382;ky imunitnej odpovede maj&uacute; potenci&aacute;l zn&iacute;&#382;i&#357; hladinu z&aacute;palov&yacute;ch cytok&iacute;nov. V malej &scaron;t&uacute;dii na ma&#269;k&aacute;ch experiment&aacute;lne infikovan&yacute;ch v&iacute;rusom FIPV-1146 sa preuk&aacute;zal pr&iacute;nos anti-TNF-&alpha; pri zvl&aacute;dan&iacute; ochorenia <sup>[213]<\/sup>. Tocilizumab, monoklon&aacute;lna protil&aacute;tka proti IL-6, sa pod&aacute;val pacientom s COVID-19 [214]. Vzh&#318;adom na rozdielne hl&aacute;sen&eacute; klinick&eacute; v&yacute;sledky je v s&uacute;vislosti s Tocilizumabom potrebn&yacute; &#271;al&scaron;&iacute; v&yacute;skum <sup>[215,216]<\/sup>.<\/p>\n\n\n\n<p id=\"__p43\">Prenos poznatkov medzi druhmi bude ma&#357; nepochybne vplyv na ma&#269;ky aj na &#318;ud&iacute; a dokonca aj na in&eacute; druhy. Hoci mnoh&eacute; zl&uacute;&#269;eniny s&uacute; &uacute;&#269;inn&eacute;, ke&#271; sa &scaron;tuduj&uacute; in vitro, ich pou&#382;itie <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemBody&gt;in vivo - lat. &amp;quot;V &#382;ivom&amp;quot;, v &#382;ivom organizme, &#318;udskom alebo zvieracom. M&ocirc;&#382;e sa t&yacute;ka&#357; ako pokuse aj skuto&#269;n&eacute;ho priebehu ur&#269;it&eacute;ho deja alebo choroby. Porov. in vitro lat. in v; Vivus &#382;iv&yacute;&lt;\/div&gt;\" href=\"https:\/\/www.fipwarriors.eu\/en\/glossary\/in-vivo\/\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">in vivo<\/a> m&ocirc;&#382;e vies&#357; k odli&scaron;n&yacute;m v&yacute;sledkom vr&aacute;tane toxicity. Okrem toho, to, &#382;e zl&uacute;&#269;enina m&ocirc;&#382;e vykazova&#357; s&#318;ubn&eacute; v&yacute;sledky u jedn&eacute;ho druhu, neznamen&aacute;, &#382;e rovnak&yacute; &uacute;&#269;inok bude pozorovan&yacute; aj u in&yacute;ch druhov, najm&auml; pri porovn&aacute;van&iacute; podobn&yacute;ch, ale odli&scaron;n&yacute;ch v&iacute;rusov a v&iacute;rusom vyvolan&yacute;ch ochoren&iacute;.<\/p>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\" id=\"sec9-viruses-14-00481title\">9. MIS-C a PASC<\/h2>\n\n\n\n<p id=\"__p44\">V apr&iacute;li 2020 zverejnila N&aacute;rodn&aacute; zdravotn&aacute; slu&#382;ba Spojen&eacute;ho kr&aacute;&#318;ovstva upozornenie na zv&yacute;&scaron;en&yacute; v&yacute;skyt multisyst&eacute;mov&eacute;ho z&aacute;palov&eacute;ho syndr&oacute;mu u det&iacute; &ndash; mnoh&eacute; z nich boli pozit&iacute;vne testovan&eacute; na COVID-19 <sup>[217]<\/sup>. Ako pand&eacute;mia postupovala, &scaron;t&uacute;die z in&yacute;ch kraj&iacute;n sk&uacute;maj&uacute;ce tento z&aacute;palov&yacute; stav poskytli viac podrobnost&iacute; smerom ku klinick&eacute;mu pochopeniu toho, &#269;o sa teraz ozna&#269;uje ako MIS-C, zriedkavej prezent&aacute;cie COVID-19 u detsk&yacute;ch pacientov. MIS-C zah&#341;&#328;a viacer&eacute; org&aacute;nov&eacute; syst&eacute;my. Kardiovaskul&aacute;rna dysregul&aacute;cia pri MIS-C sa &#269;asto pozoruje vo forme komorovej dysfunkcie, perikardi&aacute;lneho v&yacute;potku a aneuryziem koron&aacute;rnych tepien <sup>[218,219]<\/sup>. Gastrointestin&aacute;lne pr&iacute;znaky napodob&#328;uj&uacute; apendicit&iacute;du a zah&#341;&#328;aj&uacute; bolesti brucha, vracanie a hna&#269;ku. Termin&aacute;lna ileit&iacute;da je &#269;ast&yacute;m n&aacute;lezom na zobrazovac&iacute;ch vy&scaron;etreniach <sup>[220]<\/sup>. U mnoh&yacute;ch pacientov sa vyskytuj&uacute; aj neurokognit&iacute;vne pr&iacute;znaky vr&aacute;tane bolesti hlavy a zm&auml;tenosti. Z&aacute;va&#382;nej&scaron;ie neurologick&eacute; komplik&aacute;cie vr&aacute;tane encefalopatie a mozgovej pr&iacute;hody s&uacute; menej &#269;ast&eacute; <sup>[218,221]<\/sup>.<\/p>\n\n\n\n<p id=\"__p45\">Jednou z oblast&iacute;, v ktorej sa FIP a COVID-19 klinicky v&yacute;znamne prekr&yacute;vaj&uacute;, je zriedkav&yacute; z&aacute;palov&yacute; prejav infekcie SARS-CoV-2 &ndash; multisyst&eacute;mov&yacute; z&aacute;palov&yacute; syndr&oacute;m u det&iacute; (MIS-C). MIS-C sa pozoruje v pediatrickej popul&aacute;cii, podobne ako FIP be&#382;ne postihuje mlad&eacute; ma&#269;ky <sup>[43]<\/sup>. Podobne ako FIP m&aacute; MIS-C syst&eacute;mov&uacute; prezent&aacute;ciu zah&#341;&#328;aj&uacute;cu viacer&eacute; org&aacute;nov&eacute; syst&eacute;my &ndash; okrem in&eacute;ho gastrointestin&aacute;lne, kardiovaskul&aacute;rne a hematologick&eacute; abnormality <sup>[222]<\/sup>. Podobne ako pri vlhkej forme FIP sa aj pri MIS-C objavuj&uacute; pleur&aacute;lne v&yacute;potky a ascites <sup>[223]<\/sup>. Oba syndr&oacute;my vykazuj&uacute; prekr&yacute;vanie aj v cievnej patol&oacute;gii. FIP vykazuje granulomat&oacute;znu vaskulit&iacute;du, ktor&aacute; sa prekr&yacute;va s Kawasakiho vaskul&aacute;rnym syndr&oacute;mom pozorovan&yacute;m pri MIS-C <sup>[224]<\/sup>. Predpoklad&aacute; sa, &#382;e MIS-C je postinfek&#269;n&eacute; ochorenie s&uacute;visiace s predch&aacute;dzaj&uacute;cou infekciou SARS-CoV-2 <sup>[223,225]<\/sup>. Aj FIP m&aacute; oneskoren&yacute; n&aacute;stup po prvej expoz&iacute;cii FCoV a vyskytuje sa len v malej podskupine pr&iacute;padov. Hoci ma&#269;ky s FIP m&ocirc;&#382;u st&aacute;le vylu&#269;ova&#357; FCoV vo v&yacute;kaloch, predpoklad&aacute; sa, &#382;e mut&aacute;cie spojen&eacute; s prechodom biotypu z FECV na FIPV nie s&uacute; prenosn&eacute; &ndash; &#269;o podporuje ur&#269;it&yacute; stupe&#328; podobnosti obmedzen&eacute;ho infek&#269;n&eacute;ho rozsahu FIP aj MIS-C.<\/p>\n\n\n\n<p id=\"__p46\">Ned&aacute;vno bol definovan&yacute; stav postak&uacute;tnych n&aacute;sledkov COVID-19 (PASC), ktor&yacute; zah&#341;&#328;a stratu pam&auml;ti, gastrointestin&aacute;lne &#357;a&#382;kosti, &uacute;navu, anosmiu, du&scaron;nos&#357; at&#271;. a &#269;astej&scaron;ie sa ozna&#269;uje ako &bdquo;dlhodob&yacute; COVID&ldquo;. Spolu s MIS-C je PASC ve&#318;mi akt&iacute;vnym predmetom v&yacute;skumu, ktor&yacute; zhrnuli in&iacute; <sup>[226]<\/sup>, a spolu predstavuj&uacute; vynikaj&uacute;ci v&yacute;chodiskov&yacute; bod pre vyu&#382;itie ma&#269;acej medic&iacute;ny ako modelu patogen&eacute;zy vyvolanej koronav&iacute;rusmi, a to mo&#382;no neo&#269;ak&aacute;van&yacute;m sp&ocirc;sobom <sup>[224]<\/sup>.<\/p>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\" id=\"sec10-viruses-14-00481title\">10. Infekcia SARS-CoV-2 u ma&#269;iek<\/h2>\n\n\n\n<p id=\"__p47\">Ma&#269;ky sa v s&uacute;&#269;asnosti stali v&scaron;eobecne roz&scaron;&iacute;ren&yacute;mi hostite&#318;mi pre infekcie SARS-CoV-2, &#269;iasto&#269;ne v&#271;aka relat&iacute;vnej podobnosti &#318;udsk&yacute;ch a ma&#269;ac&iacute;ch receptorov ACE2. Po hl&aacute;sen&yacute;ch pr&iacute;padoch v Hongkongu a Belgicku v marci 2020 sa najpozoruhodnej&scaron;ia skor&aacute; prirodzen&aacute; infekcia vyskytla v zoologickej z&aacute;hrade Bronx v New Yorku, USA. V apr&iacute;li sa u &scaron;tyroch tigrov a troch levov objavili mierne respira&#269;n&eacute; sympt&oacute;my od ich chovate&#318;ov, pri&#269;om PCR a sekvenovan&iacute;m sa zistil SARS-CoV-2 <sup>[227]<\/sup>. N&aacute;sledne sa infekcia domestikovan&yacute;ch aj nedomestikovan&yacute;ch ma&#269;iek stala pomerne be&#382;nou v pr&iacute;padoch, ke&#271; s&uacute; majitelia a o&scaron;etrovatelia pozit&iacute;vni na SARS-CoV-2. Z klinick&eacute;ho h&#318;adiska sa infekcia SARS-CoV-2 u ma&#269;iek pova&#382;uje za preva&#382;ne asymptomatick&uacute;, pri&#269;om niektor&eacute; zvierat&aacute; vykazuj&uacute; mierne respira&#269;n&eacute; pr&iacute;znaky <sup>[228,229,230]<\/sup>. Vo v&scaron;eobecnosti sa zd&aacute;, &#382;e z&aacute;va&#382;n&eacute; respira&#269;n&eacute; pr&iacute;znaky sa u ma&#269;iek nevyskytuj&uacute;, hoci z&aacute;va&#382;n&eacute; respira&#269;n&eacute; &#357;a&#382;kosti m&ocirc;&#382;u v niektor&yacute;ch pr&iacute;padoch s&uacute;visie&#357; so z&aacute;kladnou hypertrofickou kardiomyopatiou (HCM) ma&#269;iek <sup>[94]<\/sup>. V Spojenom kr&aacute;&#318;ovstve bol tie&#382; zaznamenan&yacute; zv&yacute;&scaron;en&yacute; v&yacute;skyt myokardit&iacute;dy psov a ma&#269;iek spojen&yacute; s prudk&yacute;m n&aacute;rastom variantu B.1.1.7 (Alfa) <sup>[231]<\/sup>. S&uacute; jednozna&#269;ne potrebn&eacute; &#271;al&scaron;ie &scaron;t&uacute;die v tejto oblasti, ako aj mo&#382;n&eacute; s&uacute;vislosti medzi koronav&iacute;rusov&yacute;mi infekciami u ma&#269;iek a multisyst&eacute;mov&yacute;m z&aacute;palov&yacute;m syndr&oacute;mom u det&iacute; (MIS-C), ktor&yacute;, ako bolo uveden&eacute; vy&scaron;&scaron;ie, je zriedkav&yacute;m prejavom COVID-19.<\/p>\n\n\n\n<p id=\"__p48\">&Scaron;t&uacute;die na laborat&oacute;rnych zvierat&aacute;ch boli tie&#382; k&#318;&uacute;&#269;ov&eacute; pre pochopenie infekcie SARS-CoV-2 u ma&#269;iek, ktor&eacute; s&uacute; ve&#318;mi citliv&eacute; na infekciu oronas&aacute;lnou v&yacute;zvou. U experiment&aacute;lne infikovan&yacute;ch ma&#269;iek sa potvrdili mierne respira&#269;n&eacute; pr&iacute;znaky alebo asymptomatick&aacute; infekcia, vylu&#269;ovanie v&iacute;rusu, prenos v&iacute;rusu z ma&#269;ky na ma&#269;ku a vznik silnej neutraliza&#269;nej protil&aacute;tkovej reakcie. Ned&aacute;vne &scaron;t&uacute;die uk&aacute;zali, &#382;e po opakovanej infekcii ma&#269;iek existuje dlhodob&aacute; imunita, ale u ma&#269;iek sa m&ocirc;&#382;u vyvin&uacute;&#357; dlhodob&eacute; n&aacute;sledky vr&aacute;tane pretrv&aacute;vania z&aacute;palu a in&yacute;ch p&#318;&uacute;cnych l&eacute;zi&iacute; <sup>[232]<\/sup>. Celkovo mo&#382;no poveda&#357;, &#382;e podobne ako v pr&iacute;pade SARS-CoV v roku 2003, najm&auml; ma&#269;ky m&ocirc;&#382;u by&#357; d&ocirc;le&#382;it&yacute;m zdrojom inform&aacute;ci&iacute; o patogen&eacute;ze a imunitn&yacute;ch reakci&aacute;ch vyvolan&yacute;ch SARS-CoV-2.<\/p>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\" id=\"ack-1title\">Po&#271;akovania<\/h2>\n\n\n\n<p id=\"__p49\">&#270;akujeme Annette Choi za pomoc s obr&aacute;zkom 1 a v&scaron;etk&yacute;m &#269;lenom Whittaker Lab za u&#382;ito&#269;n&eacute; diskusie po&#269;as pr&iacute;pravy tohto rukopisu.<\/p>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\" id=\"notes-1title\">Autorsk&eacute; podiely<\/h2>\n\n\n\n<p id=\"__p51\">Na tomto &#269;l&aacute;nku sa podie&#318;ali v&scaron;etci autori. V&scaron;etci autori si pre&#269;&iacute;tali publikovan&uacute; verziu rukopisu a s&uacute;hlasili s &#328;ou.<\/p>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\" id=\"notes-2title\">Financovanie<\/h2>\n\n\n\n<p id=\"__p52\">Pr&aacute;ca v autorovom laborat&oacute;riu je &#269;iasto&#269;ne financovan&aacute; z v&yacute;skumn&yacute;ch grantov N&aacute;rodn&eacute;ho in&scaron;tit&uacute;tu zdravia, nad&aacute;cie EveryCat Foundation a Cornell Feline Health Center. AES bola podporovan&aacute; programom NIH Comparative Medicine Training Program T32OD011000. &Scaron;t&uacute;die o FIP podporuje aj Fond Michaela Zemskeho pre choroby ma&#269;iek.<\/p>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\" id=\"notes-3title\">Konflikt z&aacute;ujmov<\/h2>\n\n\n\n<p id=\"__p53\">Autori neuv&aacute;dzaj&uacute; &#382;iadny konflikt z&aacute;ujmov.<\/p>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\" id=\"fn-group-1title\">Pozn&aacute;mky pod &#269;iarou<\/h2>\n\n\n\n<p id=\"__p50\"><strong>Pozn&aacute;mka vydavate&#318;a:<\/strong> MDPI zost&aacute;va neutr&aacute;lne, pokia&#318; ide o jurisdik&#269;n&eacute; n&aacute;roky v publikovan&yacute;ch map&aacute;ch a in&scaron;titucion&aacute;lnu pr&iacute;slu&scaron;nos&#357;.<\/p>\n\n\n\n<h2 class=\"lm-underscore wp-block-heading\" id=\"ref-list-1title\">Literat&uacute;ra<\/h2>\n\n\n\n<ol class=\"has-small-font-size wp-block-list\"><li>Wolfe, L.G.; Griesemer, R.A. 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[<a href=\"https:\/\/scholar.google.com\/scholar_lookup?title=Protective+Immunity+and+Persistent+Lung+Sequelae+in+Domestic+Cats+after+SARS-CoV-2+Infection&amp;author=Chiba,+S.&amp;author=Halfmann,+P.J.&amp;author=Hatta,+M.&amp;author=Maemura,+T.&amp;author=Fan,+S.&amp;author=Armbrust,+T.&amp;author=Swartley,+O.M.&amp;author=Crawford,+L.K.&amp;author=Kawaoka,+Y.&amp;publication_year=2021&amp;journal=Emerg.+Infect.+Dis.&amp;volume=27&amp;pages=660%E2%80%93663&amp;doi=10.3201\/eid2702.203884\" target=\"_blank\" rel=\"noreferrer noopener\">Google Scholar<\/a>] [<a href=\"https:\/\/doi.org\/10.3201\/eid2702.203884\" target=\"_blank\" rel=\"noreferrer noopener\">CrossRef<\/a>]<\/li><\/ol>\n","protected":false},"excerpt":{"rendered":"<p>The article neatly summarizes the similarities between FCoV in cats and SARS-CoV-2 in humans, and the diseases they cause. <\/p>","protected":false},"author":1,"featured_media":10570,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","footnotes":""},"categories":[187,190],"tags":[],"class_list":["post-10562","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-odborne","category-preklady"],"featured_image_urls_v2":{"full":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/catman-FHD.jpg",1920,1080,false],"thumbnail":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/catman-FHD-150x150.jpg",150,150,true],"medium":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/catman-FHD-300x169.jpg",300,169,true],"medium_large":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/catman-FHD-768x432.jpg",525,295,true],"large":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/catman-FHD-1024x576.jpg",525,295,true],"1536x1536":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/catman-FHD-1536x864.jpg",1536,864,true],"2048x2048":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/catman-FHD.jpg",1920,1080,false],"trp-custom-language-flag":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/catman-FHD-18x10.jpg",18,10,true],"twentyseventeen-featured-image":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/catman-FHD.jpg",1920,1080,false],"twentyseventeen-thumbnail-avatar":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/catman-FHD-100x100.jpg",100,100,true],"woocommerce_thumbnail":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/catman-FHD-250x250.jpg",250,250,true],"woocommerce_single":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/catman-FHD-350x197.jpg",350,197,true],"woocommerce_gallery_thumbnail":["https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/catman-FHD-100x100.jpg",100,100,true]},"post_excerpt_stackable_v2":"<p>&#268;l&aacute;nok preh&#318;adne sumarizuje podobnos&#357; medzi v&iacute;rusmi FCoV u ma&#269;iek  a SARS-CoV-2 u &#318;ud&iacute;, a ochoreniami, ktor&eacute; sp&ocirc;sobuj&uacute;. <\/p>\n","category_list_v2":"<a href=\"https:\/\/www.fipwarriors.eu\/en\/category\/odborne\/\" rel=\"category tag\">Odborn\u00e9<\/a>, <a href=\"https:\/\/www.fipwarriors.eu\/en\/category\/preklady\/\" rel=\"category tag\">Preklady<\/a>","author_info_v2":{"name":"LM","url":"https:\/\/www.fipwarriors.eu\/en\/author\/starman\/"},"comments_num_v2":"0 comments","featured_image_src":"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/catman-FHD.jpg","author_info":{"display_name":"L. M.","author_link":"https:\/\/www.fipwarriors.eu\/en\/author\/starman\/"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Klinick\u00e9 a molekul\u00e1rne s\u00favislosti medzi COVID-19 a ma\u010dacou infek\u010dnou peritonit\u00eddou (FIP) - FIP Warriors CZ\/SK \u00ae<\/title>\n<meta name=\"description\" content=\"\u010cl\u00e1nok preh\u013eadne sumarizuje podobnos\u0165 medzi v\u00edrusmi FCoV u ma\u010diek a SARS-CoV-2 u \u013eud\u00ed, a ochoreniami, ktor\u00e9 sp\u00f4sobuj\u00fa.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.fipwarriors.eu\/en\/klinicke-a-molekularne-suvislosti-medzi-covid-19-a-macacou-infekcnou-peritonitidou-fip\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Klinick\u00e9 a molekul\u00e1rne s\u00favislosti medzi COVID-19 a ma\u010dacou infek\u010dnou peritonit\u00eddou (FIP) - FIP Warriors CZ\/SK \u00ae\" \/>\n<meta property=\"og:description\" content=\"\u010cl\u00e1nok preh\u013eadne sumarizuje podobnos\u0165 medzi v\u00edrusmi FCoV u ma\u010diek a SARS-CoV-2 u \u013eud\u00ed, a ochoreniami, ktor\u00e9 sp\u00f4sobuj\u00fa.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.fipwarriors.eu\/en\/klinicke-a-molekularne-suvislosti-medzi-covid-19-a-macacou-infekcnou-peritonitidou-fip\/\" \/>\n<meta property=\"og:site_name\" content=\"FIP Warriors CZ\/SK \u00ae\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/groups\/fipczsk\" \/>\n<meta property=\"article:published_time\" content=\"2022-06-04T12:53:52+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-03-29T07:49:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.fipwarriors.eu\/wp-content\/uploads\/2022\/06\/catman-FHD.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"1080\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"L. 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