Right from the horse's mouth, this globalist says flu vaccines of little value for the elderly.
https://streamable.com/z48fzoOn the other hand, Bill Gates donated $12 million in 2018 toward research for a universal flu vaccine. He remarks to make the current flu vaccine effective for elderly, you'd have to amp up the dosage -- with consequent nasty side effects on other age groups. If 1 in 10,000 vaccinated had bad side effect, that's 700,000 in the world. Hmmm, don't current covid vaccines have some very bad side effects in the 1 in 10,000 range?
No matter, I stopped flu vaccine over a decade ago, around same time frame at change to McD dietary approach. No flu's since (or before, for that matter). And now I added Zinc and Quercetin to supplements, so ought be even better protected against all viruses.