I hit the paywall. But if this is about the same thing I’m thinking of, one reason to be careful about the work China’s CDC was doing (at times with visiting staff from the US) is they were one (among many) source of lab leaks of SARSv1:

https://pmc.ncbi.nlm.nih.gov/articles/PMC7096887/

This was the US working in China, with the government’s permission. It was an international task force that was operated by the US govt.

Also, if look up biological weapons research papers from Wuhan, you’ll find that many were done in collaboration with the US, and with US funding.