One of the lesser-publicized objections to taking the covid-19 vaccines is the fear that side effects may appear after many years. This is, on the surface, a more plausible cause of concern since the vaccines have been around for less than a year and we do not have any data on what effects it might have after periods longer than that. So it is not surprising that some people feel that the verdict is not yet in on long term safety.
But scientists say that this fear can be allayed by explaining how vaccines work. The fact that the vaccines provide immunity for long times, sometimes for life, is not because they stay in the body that long. After triggering the immune response and creating antibodies to the virus, they quickly degrade and go away.
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