Comment by Stephen A. Goldstein

This map shows that the early cases in December 2019 are close to the market. Then, as cases build, they continue to be centered around that market. Just as significantly, we looked at excess deaths. You could posit that you don't catch the early cases because of a bias towards detecting cases associated with the Huanan market, and other parts of the city may have been missed. But we know that wherever this virus goes, it also causes excess deaths. We looked at the districts in Wuhan where excess deaths first appeared. Again, that maps to the district surrounding the Huanan market and not really to any other part of the city. This suggests that the epidemic began in markets in this district: the Huanan market and possibly other markets as well.