Werbung

Pfizer und BioNTech überzeugt: Omicron-Booster wirksamer als erste Impfungen

The companies made the claim via a press release issued on Nov. 4. Based on two company-led studies, the results have not been confirmed by independent scientists. Pfizer and BioNTech claim the results show their booster vaccine can be up to four times more effective for adults over 55.