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Originally Posted by meeera
A flu shot is an "actual vaccine". And influenza herd immunity is achievable, if there wasn't so much hesitancy. This is long-time established science.
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It's certainly true that influenza deaths could be mostly prevented by widespread use of vaccines. Or my taking care not to spread it. Look at the astonishing reduction in influenza cases in the 2020/2021 season.
One benefit from the pandemic has been that new vaccine technologies have been proved to work in the real world. These might lead to faster development of influenza vaccines, which should mean that they work more effectively. Currently flu vaccine makers have to guess which strains will be circulating about six months before the vaccine is needed.