The U.S. Centers for Disease Control and Prevention (CDC) is recommending that most Americans receive COVID-19 vaccines once a year. The recommendation applies to people who have been fully vaccinated with one of the three approved vaccines—Pfizer-BioNTech, Moderna, or Johnson & Johnson. The CDC’s Advisory Committee on Immunization Practices (ACIP) also recommends that people who receive the two-dose vaccines (Moderna and Pfizer-BioNTech) get a booster shot 12 months after their last dose.
The ACIP also recommends that people who receive the one-dose Johnson & Johnson vaccine get a booster shot 12 months after they receive their dose. The booster shots are intended to help people maintain immunity against the virus and protect them against new variants of the virus that may arise.