How do vaccines help babies fight infections? | How Vaccines Work

15 Feb 2019 01:01 87
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How do vaccines work with your child’s immune system to fight infections? Learn more here: https://www.cdc.gov/vaccines/parents/childhood-vaccines

Join baby Jack and his #parents as they find out how #vaccines help train your baby’s immune system to help prevent disease in this #HowVaccinesWork video.

Vaccines contain a small number of weakened or dead antigens, the parts of germs that cause a baby’s immune system to go to work. After babies receive a vaccine, their immune system will remember that antigen and attack it if it ever enters the body again. Vaccines only contain a tiny fraction of the antigens that babies encounter in their everyday surroundings.

It may take a few weeks for a vaccine to start working. Babies may also need more doses later to protect them. That’s why the recommended immunization schedule exists: it’s designed to give babies the best protection against 14 serious diseases by two years old.

Learn more about #childhood immunizations by visiting https://www.cdc.gov/vaccines/parents/childhood-vaccines or talk with your child’s doctor.

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This video can also be viewed at
https://www.cdc.gov/vaccines/videos/low-res/CDC_How_Vaccines_Work_Script2_LowRes.mp4

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