Pfizer says COVID booster offers protection against omicron
FILE - Dr. Manjul Shukla transfers Pfizer COVID-19 vaccine into a syringe, Thursday, Dec. 2, 2021, at a mobile vaccination clinic in Worcester, Mass. Pfizer said Wednesday, Dec. 8,…
FILE - Dr. Manjul Shukla transfers Pfizer COVID-19 vaccine into a syringe, Thursday, Dec. 2, 2021, at a mobile vaccination clinic in Worcester, Mass. Pfizer said Wednesday, Dec. 8,…