Sorry bro, that person is a racist and not a doctor cause without any evidence had already judged the Chinese guilty, please check his video about the findings in Italy sewage system that shows Covid precede Wuhan, his quack prognosis is that Chinese are the one who cause it, IN ITALY!!!!! WTF.The Lancet just published an article. Here,
Here is a guy giving a bit on what they say is the origin of the virus.
Apparently, both U.S. and China were doing research into coronaviruses. Some of the research involving altering the virus. The Nation Institute of Health is not willing to provide information on what types of research is being done. Documents obtained through the Freedom of Information Act were heavily redacted.