> We have done bat virus surveillance in Hubei Province for many years, but have not found that bats in Wuhan or even the wider Hubei Province carry any coronaviruses that are closely related to SARS-CoV-2. I don't think the spillover from bats to humans occurred in Wuhan or in Hubei Province.
https://web.archive.org/web/20210727042832/https://www.scien...
The virus doesn't seem to have been engineered from any previously known sarbecovirus, but the WIV had the largest collection of novel sarbecoviruses collected from nature in the world, and had proposed in DEFUSE to engineer them in collaboration with Dr. Baric at UNC. DARPA rejected that proposal, in part for safety reasons, but the WIV was technically capable of doing the work alone.
https://theintercept.com/2021/09/23/coronavirus-research-gra...