Covid

[Hermann]

Well yes, but I don't think many people realised that, whereas they do now. I used to get it every year as I mistakenly believed it would stop me getting the flu. I now won't begin getting them again until I reach 70.

Except, much like the COVID vaccine, it does significantly decrease the likelihood of you catching flu. If you're expecting the vaccine to give you 100% protection then that's on you; no vaccine in the history of the world has ever done that.