Pfizer says omicron booster is better against new subvariants like BQ.1.1 than old shots

Pfizer said the booster triggered more antibodies against omicron BQ.1.1, BA.4.6, BA.2.75.2 and XBB.1 in adults older than 55 compared to the original vaccines.

Pfizer says omicron booster is better against new subvariants like BQ.1.1 than old shots
Pfizer said the booster triggered more antibodies against omicron BQ.1.1, BA.4.6, BA.2.75.2 and XBB.1 in adults older than 55 compared to the original vaccines.