How does a disease like the bubonic plague or a particular flu strain disappear and then reappear suddenly? Once it’s disappeared from a community, how can it then survive and show up again?
In: Biology
There are natural reservoirs of diseases – host populations where they survive: for plague in the US and Central Asia it’s all sorts of ground dwelling mammals like prairie dogs and such; for flu it’s ducks/pigs in China; for Ebola it’s various primate populations in west/equatorial Africa.
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