Fayrasyada Corona waa fayrasyada RNA-ga oo daboolan kuwaas oo si ballaaran ugu qaybsan bini'aadamka, naasleyda kale, iyo shimbiraha oo keena cudurrada neef-mareenka, enteric, cagaarshow iyo neerfaha. Todobo nooc oo fayraska corona ah ayaa la og yahay inay sababaan cudurrada aadanaha. Afar fayrus-229E. OC43. NL63 iyo HKu1- waa ku badan yihiin oo caadi ahaan waxay keenaan calaamadaha hargabka caadiga ah ee shakhsiyaadka awood-difaaca leh. 19)- asal ahaan waa zoonotic waxaana lala xiriiriyay jirro mararka qaar dilaa ah. IgG iyo lgM unugyada difaaca jirka ee 2019 Novel Coronavirus waxa lagu ogaan karaa 2-3 toddobaad kadib soo-gaadhista. lgG ayaa weli ah mid togan, laakiin heerka antibody-ga ayaa hoos u dhacaya saacadaha dheeraadka ah.