No comments
World Health Organization
The Eradication of Smallpox
![The Eradication of Smallpox](http://witnify.com/wp-content/uploads/2014/12/the-eradication-of-smallpox-200x150.jpg)
Smallpox was an infectious disease that caused fluid-filled blisters all over the body and had a mortality rate of 30-35%. Thanks to effective vaccination campaigns, smallpox became the first disease to be declared eradicated by the WHO on December 9, 1979. In this video, D.A. Henderson, an epidemiologist and physician … Continue reading