Pfizer: COVID booster offers protection against omicron
Dr. Manjul Shukla transfers Pfizer COVID-19 vaccine into a syringe, Dec. 2, 2021, at a mobile vaccination clinic in Worcester, Mass. AP Pfizer said Wednesday that a booster of its…
Dr. Manjul Shukla transfers Pfizer COVID-19 vaccine into a syringe, Dec. 2, 2021, at a mobile vaccination clinic in Worcester, Mass. AP Pfizer said Wednesday that a booster of its…