TED-Ed: How we conquered the deadly smallpox virus - Simona Zompi

The video discusses the history of smallpox, a deadly virus that originated in northeastern Africa and spread globally, causing significant mortality. Early treatments like variolation were developed, but it was Edward Jenner's discovery of vaccination using cowpox that led to effective prevention. Jenner's work eventually led to the global eradication of smallpox, certified by the WHO in 1979.

What was the outcome of Jenner's experiments with cowpox and smallpox?

What was the significance of the dairy maid Sarah Nelmes in the context of smallpox vaccination?