18 May 2021 - COVID-19 booster shots could be needed for fully vaccinated people within a year, the FDA’s top vaccine regulator said Tuesday.
The current versions of the Pfizer-BioNTech and Moderna COVID-19 vaccines are highly effective at preventing COVID and also appear to protect against the variants circulating in the United States, said Dr. Peter Marks, director of the FDA’s Center for Biologics Evaluation and Research.