A preliminary laboratory study demonstrated that three doses of the Pfizer-BioNTech COVID-19 vaccine neutralize the Omicron variant (B.1.1.529 lineage) while two doses show significantly reduced neutralization titers. ...
Pfizer CEO Albert Bourla said on Tuesday that he predicts the COVID-19 vaccine booster shots will be effective for a year, but warned that more research needs to be done to assess their effectiveness. ...