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How do vaccines work? - Kelwalin Dhanasarnsombut
4:36
YouTubeTED-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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