Seven strains of Coronavirus

Variant Genus Year first reported
Human CoV 229E AlphaCoronavirus
Human CoV OC43 BetaCoronavirus
SARS-CoV BetaCoronavirus 2003
Human CoV NL63 AlphaCoronavirus 2004
Human CoV HKU1 BetaCoronavirus 2005
MERS-CoV BetaCoronavirus 2012
2019-nCoV (COVID-19) BetaCoronavirus 2019