Smallpox eradication

In December 2019 the World Health Organization commemorated the 40th anniversary of smallpox eradication. Smallpox had plagued humanity for at least 3000 years, killing 300 million people in the 20th century alone. The last known endemic case of smallpox was reported and the outbreak promptly contained in Somalia in 1977. The smallpox eradication programme led […]