HEALTH

A Disease Driven Extinct

1980 CE

History · Contemporary · Holocene · Meghalayan

On 8 May 1980, the World Health Assembly declared smallpox eradicated: the last natural case had been a hospital cook in Somalia in 1977. A disease that killed hundreds of millions in its final century was hunted down by a global campaign that switched from mass vaccination to surveillance and ring containment, house-to-house searches, rewards for reported cases, vaccination circles around each one.

Why it matters

Once, and so far only once, our species deliberately drove a disease extinct. It took a Cold War world agreeing on one thing, fieldworkers in thirty endemic countries, and a strategy smarter than brute force. The victory is a standing proof of what coordinated public health can do, and its lessons, and its difficulty, measure every eradication campaign since.

Dating & uncertainty

The World Health Assembly certified eradication on 8 May 1980, about two and a half years after the last natural case, in Somalia in 1977. Smallpox remains the only human disease eradicated; the campaign's decisive method was not mass vaccination alone but surveillance and ring containment.

Sources

1. Strassburg (1982), American Journal of Infection Control · The global eradication of smallpoxdoi:10.1016/0196-6553(82)90003-7
2. Bhattacharya & Dasgupta (2009), American Journal of Public Health · A tale of two global health programs: smallpox eradication’s lessons for the antipolio campaign in Indiadoi:10.2105/ajph.2008.135624
3. Riedel (2005), Baylor University Medical Center Proceedings · Edward Jenner and the history of smallpox and vaccinationdoi:10.1080/08998280.2005.11928028

Our species’ history as one day

23:59:4712.6 s before midnight

if the 315,000 years of Homo sapiens were compressed into a single day