Smallpox used to kill millions of people every year. Here’s how humans beat it.

Photo caption: A smallpox vaccination center in Bihar, India, in 1974. Photo credit: Santosh Basak / Gamma-Rapho via Getty Images. Article by Kelsey Piper. Vox – updated May 8, 2022.

More contagious than Covid-19 and with a 30 percent mortality rate, smallpox was one of history’s biggest killers. Now it’s gone.

More than a million Americans have died of Covid-19, and the World Health Organization estimated this Thursday that the global death toll is around 15 million — a horrifying, and largely unnecessary, tragedy. […]

Click here to view original web page at www.vox.com