Start charging people with Crimes against humanity and they will all crack and start throwing their colleagues under the bus.
Ralph Baric, The Bat Lady, Peter Dazak, Francis Collins, Fauci, all the people Fauci paid off to keep quiet... It would just take a couple weeks for the truth to come out.
In China, you aren’t innocent until proven guilty. Do buisiness in China with deadly pathogens, be subject to Chinese style justice.
It will be complicated. Anybody with a keyboard can go online and spew a conspiracy theory. I had a professor from France while I was in graduate school. The professor said (in a delightful accent), “I do not believe a theory until someone has replicated the data to support the theory.” That resonated with me!