The Wuhan Institute of Virology

The story that killer viruses are accidentally brewed in exotic wet markets seems plausible, provided you do not mention that the only BioHazard Level 4 Lab in China is located nearby. They even have a website...

http://english.whiov.cas.cn/

And here is their press release where they announce the opening of the laboratory.

http://english.whiov.cas.cn/News/Events/201502/t20150203_135923.html?fbclid=IwAR1AU2eL2jQ1TIZ0WnZk_3NYfo0dAsbenj19WdWorBQI8VRaFuX06KEZ_Mw