The coronavirus lab is in Wuhan because it's a big city in a region where historically a lot of coronoviruses originate, so it makes sense that they'd be researching them there.
That's not true though, the lab is in Wuhan due to it's proximity to major universities. The SARS like coronaviruses that they studied are in provinces in the south such as Yunnan, Guangdong, and bordering countries like Laos. That's why researchers from the lab always went on field sampling missions to Yunnan and Laos.
The reason the lab is Wuhan has nothing to do with where these viruses originate, it's there for the same reason there is a BSL4 lab in NYC.
