Because by far the simplest explanation is that this is a zoonosis. The virus is not particularly virulent, it doesn't seem to have an easy time of human-to-hum

Because by far the simplest explanation is that this is a zoonosis. The virus is not particularly virulent, it doesn't seem to have an easy time of human-to-human transmission, and interesting coronaviruses have been found in animals in Asian wet markets many times before.