Pfizer says COVID booster offers protection against omicron
By LAURAN NEERGAARD AP Medical Writer Pfizer said Wednesday that a booster of its COVID-19 vaccine may offer important protection against the new omicron variant even though the in…
By LAURAN NEERGAARD AP Medical Writer Pfizer said Wednesday that a booster of its COVID-19 vaccine may offer important protection against the new omicron variant even though the in…