Novavax’s Covid-19 Booster Shot Wins US Emergency Authorization

Novavax Inc.’s Covid-19 booster for people 18 and older was authorized by US regulators, offering another option to those seeking protection ahead of a potential wave of cases this winter.

The booster dose can be administered six months after completion of primary vaccination with an authorized or approved Covid-19 vaccine. Novavax’s booster shot is also available in adults for whom an messenger RNA bivalent shot is not accessible or clinically appropriate.

Pre-clinical data from the company suggest that the vaccine induces an immune response against Omicron variants, including BA.4/5.

“According to CDC data, almost 50% of adults who received ...