T-cell Covid protection before the pandemic
Health Check
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Is Your Immune System Winning Over Time?
immunity does start to fall over time after vaccination, which is why some countries are rolling out booster vaccines. And what you are seeing at that point is people catch ing covert again, despite the fact that they have been faccinated. So if we don't know what it is, we can't test for but i would say your chances are pretty high.
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