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Politics : Formerly About Advanced Micro Devices
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To: Broken_Clock who wrote (1429743)12/20/2023 7:37:48 PM
From: combjelly1 Recommendation

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pocotrader

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No vaccination prevents infections in everyone. But if you are vaccinated and you do get infected, it almost always reduces the severity. Note the "almost always". The point of vaccinations is to have enough people with herd immunity so that the disease starts to vanish. For DNA viruses, like smallpox, they can even be eliminated in the human population because the virus doesn't mutate readily. For RNA viruses, which do mutate, sometimes at the drop of a hat, they can be more problematic. Like influenza. Or COVID. But even with DNA viruses, the immunity can decline over time. Which is why there are things called "booster shots". As vaccines have improved over the decades, those have become less necessary for some diseases, but it still is an issue with many. Which is why tetanus shots should be boosted periodically.

None of this information is new. And, in fact, was pretty widely known.
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