Corona virus came from bats and the scientist which was investigating that is missin in Wuhan. Public info, which you can find yourself

Look at the links in video description. Here is one interesting translated post:

https://translate.google.com/translate?hl=&sl=auto&tl=en&u=http%3A%2F%2Fblog.creaders.net%2Fu%2F3027%2F202002%2F366239.html