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Why does my child need more than one dose of certain vaccines?

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Some vaccines need more than one dose to help the immune system build up enough tools to protect the body. It’s important to get all the doses in a vaccine series. If you don't, your child isn’t getting full protection.

Other vaccines wear off over time. "Booster" shots make sure the immune system can still fight a disease.

If your child misses a dose, talk to his doctor to get it rescheduled.The CDC has a “Catch-Up Immunization Schedule” for people who miss shots.

From: Children’s Vaccines: The Basics WebMD Medical Reference

SOURCES: 

Centers for Disease Control: "How Vaccines Work," "Recommended Immunizations for Children from Birth Through 6 Years Old," "2015 Recommended Immunizations for Children from 7 Through 18 Years Old."

American Academy of Pediatrics website: "Who Should Not Be Immunize," "AAP Immunizations Frequently Asked Questions: Vaccine Safety." 

DeStefano, F.  2013. The Journal of Pediatrics,

Drutz, J. UpToDate.

Reviewed by Renee A. Alli on September 08, 2017

SOURCES: 

Centers for Disease Control: "How Vaccines Work," "Recommended Immunizations for Children from Birth Through 6 Years Old," "2015 Recommended Immunizations for Children from 7 Through 18 Years Old."

American Academy of Pediatrics website: "Who Should Not Be Immunize," "AAP Immunizations Frequently Asked Questions: Vaccine Safety." 

DeStefano, F.  2013. The Journal of Pediatrics,

Drutz, J. UpToDate.

Reviewed by Renee A. Alli on September 08, 2017

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Which group of children should not be vaccinated?

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