Playing 1/5
  • What Is Smallpox?

    YouTube 03:09
  • History of vaccination: Smallpox vaccines

    YouTube 02:56
  • 40th anniversary of smallpox eradication

    YouTube 02:02
  • Forgotten smallpox vials under CDC examination

    YouTube 03:14
  • ‘Smallpox' Vials Found at Merck Lab in Suburban Philadelphia Facility

    YouTube 03:18

Smallpox was an infectious disease caused by one of two virus variants, Variola major and Variola minor. The last naturally occurring case was diagnosed in October 1977, and the World Health Organization (WHO) certified the global eradication of the disease in 1980. The risk of death following contracting the disease was about 30%, with higher rates among babies. Often those who survived had extensive scarring of their skin, and some were left blind.

Discover in context

This site is not available in the landscape mode.
Please rotate your phone or install our app.