>>3965731 LB "FLU Biological Warfare
This is old - was actually published (youtube) January 2018 so applies to 2017-2018 flu season. The vaccine was a poor match for that flu season. Haven't checked on this one yet.
This link takes you directly to the cdc flu site where the data is updated weekly. As far as I know it is essentially raw data so we can watch for ourselves and figure out what is going on IMO.
https://www.cdc.gov/flu/weekly/index.htm#ILIMap