The "track record" for annual flu shots is about 20% effective - at best. And that is if you believe the most optimistic government statements.
I believe that George Carlin had it right. I don't believe anything the government says anymore. I used to believe some things, but it seems like a bad bet these days.
I can pass on the annual flu shots.
I did take the pneumonia vaccination (PPSV23). Perhaps I was being too optimistic there, and certainly inconsistent. I judged that vaccine to be substantially effective at preventing pneumonia. That was in the "good old days" before the CDC rolled out the COVID-19 program.
How quaint that I actually trusted some government information back then.
I noted that my doctor advised me to avoid any other vaccinations for a six-month period after PPSV23. She told me there were a lot of bad cross-reactions with it if people took too many other vaccinations at the same time.
The New York Times MARCH 11, 2022
Flu Vaccine Was Not Very Effective This Season, the C.D.C. Says:
by Alyssa Lukpat
CDC: The Flu vaccine was only about 16 percent effective at reducing a person’s chance of getting a mild or moderate infection, the agency said. Experts said a good rate would be at least 50 percent.
The New York Times MARCH 11, 2022
Flu Vaccine Was Not Very Effective This Season, the C.D.C. Says
by Alyssa Lukpat
Also, our flu shot loses 20-30% effectiveness every month after the shot date. In our area, flu shots are the big deal in the last 2 weeks in Sept.
We stopped getting the flu shots the fall before we knew about Covid. I got GB from the swine flu shots.
This year’s Covid shot is probably less effective than the Flu shots.