https://www.vox.com/2020/3/4/21156607/how-did-the-coronavirus-get-started-china-wuhan-lab
Meanwhile, on Fox News and social media, a dangerous conspiracy theory about the origin of the health crisis won’t die.
There are two main versions of the rumor, and they have
one common thread: that the coronavirus, SARS-CoV-2, originated in a
level 4 (the highest biosafety level) research laboratory in Wuhan.
In one version of the rumor, the virus was engineered in
the lab by humans as a bioweapon. In another version, the virus was
being studied in the lab (after being isolated from animals) and then “escaped” or “leaked” because of poor safety protocol.