Seems to me that the flu vaccine can also enhance the flu, much like the COVID I vaccine did to the ferrets and mice. Whenever I got the vaccine, I'd get so sick (2-3 times/season) every time I got the vaccine, I'd have to go to the doctor for treatment - and at least once I ended up in the hospital with it. I was young and healthy. Does anyone else have a better explanation for why this happened? (I don't get the vaccine any more - and I don't get the flu any more) I found out later that people can even die from the flu they'd been vaccinated for. Everyone I know still gets the flu in spite of being vaccinated. They fortunately didn't end up with it 2-3 times/season like I did, but they still got it. Btw, I wouldn't call this "anecdotal" - it's EXPERIENTIAL. There are medical records to back it up.