This is a very cool investigation. Would you consider doing something similar for the flu in the United States, given that over 40 million people were sick, over 800,000 people were hospitalized, and over 61,000 people died in the 2017-2018 season in the US, according to the CDC? I'm not sure if you can get similarly detailed data for these illnesses, though, for whatever reason.
Thanks!
EDIT: well, this looks dumb now, doesn't it