Effectiveness of Pfizer COVID-19 Vaccine Drops Significantly After 6 Months

A new study recently published in the Lancet found that the effectiveness of the Pfizer vaccine to fight COVID-19 infection drops significantly after 6 months. Following administration of the second dose of the two-shot series, the efficacy of the Pfizer vaccine at preventing infection with SARS-CoV-2 is 88%, but after 6 months, this percentage drops to 47%. However, the vaccine’s ability to prevent hospitalization and mortality due to COVID-19 illness remained high—at 90%—even after 6 months. The United States Food and Drug Administration has authorized Pfizer booster shots for those age 65 and older as well as other high-risk groups. Click here to read more.