ninja007 I did not get any shot or booster, about a year later I had a high fever for 4 days, my body beat it and I have not been sick since, that is how nature works, I created and anti-body, a code so the T-cells have a plan of attack
You don't inject a semi weak virus into yourself and just hope your immune system can handle it.
I never had a flu shot.....what do you know I have never had the flu