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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. But how does this seemingly counterintuitive process work? Kelwalin Dhanasarnsombut details the science behind vaccines. [4:35]
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Classroom Considerations
- Knovation Readability Score: 3 (1 low difficulty, 5 high difficulty)
- The intended use for this resource is Practice