To be fair, the Johns Hopkins Center isn’t just Adalja. I’m not aware of the list of things they do, but for instance, they kept an updated database in the early stage of the virus outbreak that was extremely helpful for forecasting!
If you’re referring to what I think you are, it was a different group at Hopkins
Oh, you’re probably right then!
In case anybody’s curious: https://coronavirus.jhu.edu/map.html