You could better start taking vitamin D3 supplements. Some use 125 mcg(5000 Intl Units) daily in a tiny gelcap, others take less, still others more. It is much netter protection against flu(and colds) than anything in a needle and the microbes do NOT develop any immunity to it. It is cheaper and makes no complications. Or you could move to a tropical or subtropical land and get out in the sunshine every day. The D3 is a less traumatic solution and avoids the air fare.
1. All living humans.
2. All dead humans.
Went to the doc for another reason the other day. The nurse that took my vitals asked about vaccines and as usual I declined. She mentioned no record of covid shots. I said nope. She said good don’t take them. 😂👍. She then told me some patients come in wanting to know when the latest booster will be available. She indicated they must be a little nutz.