"The virus is created in a lab" is a conspiracy theory that is being kept alive because of the way American politics work.

People asume that all this writing is "organic". It is not. It is orchestrated and coordinated. Basically the current US administration gains politically by keeping war rhetorics; the "maybe the virus is created in lab, maybe released by accident, maybe on purpose, we don't know, China is not being transparent" is a key part.

Accepting the virus as a natural phenomenon puts the focus on the actual policy response and that is much less of a winner.