This market resolves to YES if I become extremely confident that Covid-19 was intentionally manufactored in a lab and intentionally released, and to NO if I become extremely confident that it wasn't.

This won't happen based on a single article or press release or youtube video; it will only happen once there is overwhelming evidence in one direction, coming from a broad range of people who have no conflict of interest. (Basically, you can rest assured I'm not going to resolve this market until most traders agree I should.)

See /IsaacKing/did-covid19-come-from-a-laboratory for the more general question of whether it came from a lab at all, including accidental leaks.