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Question

Is it safe for a baby to get the flu vaccine in March and April, and then get the next season's flu vaccine in September?

AAP Committee on Infectious Diseases

Answer

Is it safe to get the flu vaccine late in one season and early in the next one?

​Yes, it is safe to vaccinate late in one flu season and early in the next one. The influenza vaccine in March and April will usually be different from the one given in the fall.

​The American Academy of Pediatrics (AAP) and the Centers for Disease Control and Prevention (CDC) recommend that seasonal influenza vaccine be administered to children 6 months of age and older as soon as it becomes available.

Because flu season can continue to occur through the spring in the US and it occurs in many areas of the world during April through September, the influenza vaccine should be given to children who missed vaccination in the preceding fall and winter. Another late season use of vaccine is to complete vaccinations for children 6 months to 8 years who needed 2 doses of vaccine but failed to get their second dose. For each of these situations, vaccine can be given through the month of June since most influenza vaccine has a June 30 expiration date.

Additional Information:


AAP Committee on Infectious Diseases

​The AAP Committee on Infectious Diseases monitors current developments in the prevention, diagnosis, and treatment of infectious diseases and reports these to the membership with pertinent recommendations. It also prepares updated editions of the Red Book: Report of the Committee on Infectious Diseases and develops and reviews policy recommendations on the use of vaccines.

Last Updated
9/6/2019
The information contained on this Web site should not be used as a substitute for the medical care and advice of your pediatrician. There may be variations in treatment that your pediatrician may recommend based on individual facts and circumstances.
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