"Steven Quay, a physician-researcher, has applied statistical and bioinformatic tools to ingenious explorations of the virus’s origin, showing for instance how the hospitals receiving the early patients are clustered along the Wuhan №2 subway line which connects the Institute of Virology at one end with the international airport at the other, the perfect conveyor belt for distributing the virus from lab to globe."
https://nicholaswade.medium.com/origin-of-covid-following-th...
(third to last paragraph)