For the lab leak theory to be true, SARS-CoV-2 must have been present in the Wuhan Institute of Virology before the pandemic started. But there’s not a single piece of data suggesting this.
It’s more evidence a lab leak is very unlikely.
Since the WHO’s investigation earlier this year, several papers have come to the same conclusion regarding the likely origins of SARS-CoV-2. Yet progress is too slow.
The sketchy history of international efforts to control bioweapons suggests that nations will resist cooperative monitoring of gene hacking for medical research.