https://www.who.int/health-topics/coronavirus/origins-of-the...
Origins of the SARS-CoV-2 virus
And unlike the arrticle here, this report is based upon interviews with employees at the lab and various form of documentation provided by the lab. Including health records of the employees.
For more from one of the WHO people:
https://theconversation.com/i-was-the-australian-doctor-on-t...
I was the Australian doctor on the WHO’s COVID-19 mission to China. Here’s what we found about the origins of the coronavirus