Pfizer Vaccine 90% Effective Against Severe COVID-19 for at Least 6 Months: Study
TUESDAY, Oct. 5, 2021 (HealthDay News) — Full vaccination with the two-dose Pfizer COVID-19 vaccine has been 90% effective in protecting against hospitalization for at least six months, a new study shows. That includes the time during which the highly contagious Delta variant has been circulating in the United States.Continue Reading