The global eradication of smallpox, certified in 1979, is one of the
greatest public health achievements in history. It marked the end of a disease
that in the past had killed 3 million people every year and scarred or blinded
millions more. It also commemorated a decade, during the Cold War, when all
countries united behind a common humanitarian cause. The United States was
the largest donor and provided major logistic and staff support. The Soviet
Union was the largest supplier of vaccine.
Brundtland GH. Smallpox Revisited. JAMA. 2002;287(9):1104. doi:10.1001/jama.287.9.1104