It is pretty much accepted by the western academic community that in SARS 2003 and SARS 2019, the bat is the original sourse and the civet (2003) and the Pandoloin(2019) were host animals.
MERS 2012, a corona virus with a high mortality rate, was thought to originate in bats and then given to camels before infecting humans.
"The origins of the virus are not fully understood but, according to the analysis of different virus genomes, it is believed that it may have originated in bats and was transmitted to camels sometime in the distant past."
https://www.who.int/news-room/fact-...t-respiratory-syndrome-coronavirus-(mers-cov)
Dogs can carry very bad nasties, but I still cuddle with mine.