Pfizer Vaccine’s Protection Against Covid-19 Declines After Six Months but Remains High

Newly released data show that the efficacy of the Pfizer vaccine protecting against symptomatic Covid-19 dropped every two months, to 84% after six months from a peak of 96% within two months of vaccination, adding to the growing body of research that suggests protection gleaned from Pfizer’s vaccine wanes over time.

Pfizer Vaccine’s Protection Against Covid-19 Declines After Six Months but Remains High



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