Novel coronaviruses na cikin nau'in β.COVID-19 cuta ce mai saurin kamuwa da numfashi.Mutane gabaɗaya suna da sauƙi.A halin yanzu, marasa lafiya da suka kamu da cutar sankara ta coronavirus sune babban tushen kamuwa da cuta;Mutanen da suka kamu da asymptomatic suma suna iya zama tushen kamuwa da cuta.Dangane da binciken cututtukan cututtuka na yanzu, lokacin shiryawa shine kwanaki 1 zuwa 14, galibi daga kwanaki 3 zuwa 7.Babban bayyanar cututtuka sun haɗa da zazzabi, gajiya da bushewar tari.Ana samun cunkoso na hanci, yawan gudu, ciwon makogwaro, myalgia da gudawa a wasu lokuta.

 
Mura cuta ce mai saurin yaduwa, m, kamuwa da cuta ta hanyar numfashi.Abubuwan da ke haifar da cutar suna da bambancin rigakafi, ƙwayoyin cuta na RNA guda ɗaya waɗanda aka sani da ƙwayoyin cuta na mura.Kwayoyin cutar mura nau'i uku ne: A, B, da C. Nau'in A sun fi yaduwa kuma suna da alaƙa da cututtuka masu tsanani.Nau'in ƙwayoyin cuta na B suna haifar da cutar da ta fi sauƙi fiye da wanda ke haifar da nau'in A. Nau'in ƙwayoyin cuta na C ba a taɓa haɗuwa da babbar annoba ta cutar ɗan adam ba.Dukansu nau'in ƙwayoyin cuta A da B na iya yaduwa lokaci guda, amma yawanci nau'i ɗaya ne ke da rinjaye a lokacin da aka bayar.