Any credibility to the study released by this Dr. Steven Quay? He seems to have uncovered ample evidence, that in the case of COVID19, it was leaked from a lab.
"A Bayesian analysis concludes beyond a reasonable doubt that SARS-CoV-2 is not a natural zoonosis but instead is laboratory derived"
No credibility. In this poorly written paper the only interesting claim he cites is that some portion of SARS-Cov-2 looks like a "vector" sequence, but it's really just looking like a naturally occurring coronavirus and he confuses plasmid vs a vector. See: https://www.tandfonline.com/doi/full/10.1080/22221751.2020.1...
Just because the Chinese government lies a lot, it doesn't mean they are lying about this. There is no need.
this looks like quack bullshit - I'd be very careful what to believe. Just look at page 6 that makes some arbitrary calculations and the bold headline. I'd skip that as evidence.
We discussed this in the past. While it is possible it escaped from the lab, his argument that it was not natural is not terribly compelling. That it reads like a sci-fi thriller is kind of a tell.