Table 1 Etiological characteristics of SARS-COV, MERS-COV, and SARS-CoV-2
Virus Genus Intermediate host Reservoir host Receptor Origin
SARS-COV-2 β-coronavirus ? Bat ACE2 Wuhan, China
SARS-COV β-coronavirus Civet Bat ACE2 Guangzhou, China
MERS-COV β-coronavirus Dromedary Bat CD26/DPP4 Saudi Arabia