After half a million deaths and more than a year of lockdowns, quarantines, masking and social distancing, the U.S. is in the midst of a vaccination campaign that aims to put an end to the worst of the COVID-19 pandemic. Months of rigorous testing and clinical trials have shown that the vaccines are safe and highly effective at preventing COVID-19 and will likely fend off serious illness or hospitalization even if you do get sick. What's still unclear is just how long that protection will last, or whether we'll eventually need boosters or follow-up shots to protect against new variants of SARS-CoV-2, the virus that causes COVID-19.
A piece of the answer came today from Pfizer, which announced that its vaccine, after the second dose, was shown to be highly effective for up to six months — even against one of the well-known virus variants.
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How Long Will COVID-19 Vaccine Immunity Last?
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