Haven't had a flu shot since I left the Navy. Coincidentally, I haven't contracted the flu since, and except for "getting" C-19 once in 2022, I haven't been sick in the 20 yrs since my Naval service ended. And I'm not even sure it was C-19, as the only symptom I had from it was a fever for 2 days. The only test done on me by the Dr was a PCR, and we all know how inaccurate those are. Also coincidentally, I contracted pneumonia twice while in the Navy. But every year I was fo ced to get the flu shot, I ended up with pretty wicked flu symptoms for about 2 weeks each time.