Phylogenetic evidence has shown that bats and rodents act as the genetic source for the majority of alpha-CoVs and beta-CoVs, while birds are the primary reservoir for gamma-CoVs and delta-CoVs.
Korea Kaskazini ilitangaza, kufikia Alhamisi, kuwa ilikuwa mojawapo ya nchi chache ambazo hazikuwa na maambukizi ya virusi vya korona.