An elevated rate of Bell’s palsy, a type of facial paralysis, was identified among elderly people after COVID-19 vaccination with a Pfizer booster shot, U.S. regulators said in a new study.
The “small but statistically significant elevation” was detected after vaccination with Pfizer’s old booster shot, which is no longer available in the United States, researchers with the U.S. Food and Drug Administration (FDA) said in a preprint study.
