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4:36
YouTube
TED-Ed
How do vaccines work? - Kelwalin Dhanasarnsombut
Learn the science behind how vaccines trigger an immune response and teach our bodies to recognize dangerous pathogens. -- The first ever vaccine was created when Edward Jenner, an English physician and scientist, successfully injected small amounts of a cowpox virus into a young boy to protect him from the related (and deadly) smallpox virus ...
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In a major departure from past practice, the CDC is scaling back the number of recommended vaccines for children. The new schedule recommends that flu and COVID-19 vaccines only be given after consulting with a health care provider. It also narrows recommendations for hepatitis A and B, RSV, and bacterial meningitis to what it considers higher-risk groups. The decision aligns the U.S. more closely with Denmark and Japan, something that HHS Secretary Robert F. Kennedy Jr. has long wanted. The new
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