The Wuhan coronavirus may have originated in bats or snakes and been transmitted to humans through an intermediary species
NL63
(2002)
Intermediate
hosts
Sars
(2003)
(Civet)
Mers
(2012)
?
Wuhan CoV
(2020)
NL63
(2002)
Intermediate
hosts
Sars
(2003)
(Civet)
Mers
(2012)
?
Wuhan CoV
(2020)