Wuhan Fine Biotech Co. Ltd.
Very new Chinese Bio Tech company in the same town?
Use you imagination.
Bats? Yes, maybe.
Coronavirus outbreak: Is bat soup responsible?
https://www.indiatvnews.com/news/world/coronavirus-outbreak-bat-soup-582665
Look at this pic: https://resize.indiatvnews.com/en/resize/newbucket/715_-/2020/01/bat-soup-1579866297.jpg
Perhaps “escaped” bats?