How does herd immunity work?
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Since the start of the coronavirus COVID-19 pandemic, the term “herd immunity” has been all over the news. But what does it really mean? It’s Okay To Be Smart uses mousetraps and ping-pong balls to show how it works.
How do vaccination programs figure out the minimum proportion of a population that has to be immunized?
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- Video created by Be Smart
- Lesson Plan created by Lauren McAlpine
