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0 pointsjaidhyani2y ago0 comments

Smallpox eradication

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fhars2y ago

That was not a black swan event, that was a concerted effort over two centuries.

leoh2y ago

The discovery of the vaccine itself

j / k navigate · click thread line to collapse

fhars2y ago

That was not a black swan event, that was a concerted effort over two centuries.

leoh2y ago

The discovery of the vaccine itself

j / k navigate · click thread line to collapse