"Animal virology" . "Gene expression" . "MicroRNA" . "Mammals described in 1758" . "Coprophagous animals" . "RNA" . "RNA splicing" . "Infraspecific virus taxa" . "Epidemiology" . "Alphacoronaviruses" . "Taxa named by Carl Linnaeus" . "Pigs" . "Infectious diseases" . "Omics" .