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Why is the COVID vaccine age-based?

Infectious Disease Specialist and Epidemiologist, Céline Gounder, MD explains the dosing of the COVID-19 vaccine is based on the maturity of the immune systems, not size or weight.

This information is shared for educational purposes only and should not be used as a substitute for professional medical advice. The views expressed are those of the featured medical professional and reflect information available to that professional at time of filming. Always consult a health care provider for any personal health decisions. Click here for vaccine FAQs from the CDC.

Stay up to date with your COVID vaccine, including boosters!

COVID vaccines are safe and effective for everyone ages 6 months and older.

Immunity wanes over time. Keep up your protection against COVID by getting boosted when eligible.

Updated (bivalent) boosters are now available for adults and children 5 and older.

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