Smallpox was more contagious than Covid-19 and with a 30% mortality rate. “Ring vaccination” made it the first eradicated disease.

The Morning News https://ift.tt/3oMCvtG

Smallpox was more contagious than Covid-19 and with a 30% mortality rate. “Ring vaccination” made it the first eradicated disease.

↩︎ Vox

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