Pfizer and BioNTech Announce Positive Early Data From Clinical Trial of Omicron BA.4/BA.5-Adapted Bivalent Booster in Individuals 18 Years and Older

Sera collected from participants 7 days after administration of a 30-µg booster dose of the Omicron BA.4/BA.5-adapted bivalent COVID-19 vaccine showed a substantial increase in the Omicron BA.4/BA.5 neutralizing antibody response above pre-booster levels

Data suggest Omicron BA.4/BA.5-adapted bivalent booster is anticipated to provide better protection against Omicron BA.4/BA.5 sublineages than original vaccine across younger and older adults