<unk> es (Alpha-CoV) are members of the first of the four genera (Alpha-, Beta-, Gamma-, and Delta-) of coronaviruses. They are positive-sense, single-stranded RNA viruses that infect mammals, including humans. They have spherical virions with club-shaped surface projections formed by trimers of the spike protein, and a viral envelope.<unk> es are in the subfamily Orthocoronavirinae of the family Coronaviridae. Both the Alpha- and Betacoronavirus lineages descend from the bat viral gene pool.<unk> es were previously known as "phylogroup 1 coronaviruses".
Alphacoronavirus
Pandoravirus
Orthohantavirus
Coronavirus
Coronavirus 
Arbovirus
Betacoronavirus
Andes orthohantavirus