Sydney smallpox epidemic
from Great Moments In Science Hosted by Australian Broadcasting Corporation
We're now quite familiar with terms like 'herd immunity' and 'epidemic', and that when separate groups of people—with separate germs—meet for the very first time, things can turn out badly. If you have never been exposed to a specific germ you won't be primed for protection against it.
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This episode was published on March 15, 2022.
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