Information about the Pfizer-BioNTech COVID-19 Vaccine
Recommended for People 5 Years and Older
Primary Series: 2 doses of Pfizer-BioNTech in the primary series, given 3–8 weeks apart. People who are moderately or severely immunocompromised (have a weakened immune system) should get a 3rd dose at least 4 weeks after their 2nd dose in the primary series.
Boosters: People who received a Pfizer-BioNTech primary series should get a booster. Only some people can get a 2nd booster dose. Use CDC’s COVID-19 booster tool to learn if and when you can get boosters to stay up to date with your COVID-19 vaccines.
Learn about the recommended timing between Pfizer-BioNTech COVID-19 vaccines and boosters for:
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