The Centers for Disease Control and Prevention has recommended booster doses for people 5 and older.

Initial booster shots are recommended for those who are:

• Age 5 and older and completed their primary vaccination series of Pfizer at least 5 months ago
• Age 18 and older and completed their primary vaccination series of Moderna at least 5 months ago or completed their primary vaccination of Johnson & Johnson at least 2 months ago

See additional recommendations for people who are moderately to severely immunocompromised. A second booster dose is recommended for certain people at increased risk of severe disease.