Stuff You Should Know
Stuff You Should Know
iHeartRadio
How Herd Immunity Works
1 hour 8 minutes Posted May 12, 2020 at 2:00 am.
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Herd immunity is an epidemiological concept that if enough people are inoculated against a disease the rest of us won’t get it. It’s been useful in holding back diseases like polio and measles, but we have vaccines for them. We don’t have one for Covid-19.

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