On Oct. 30, 1977, Ali Maow Maalin, a hospital cook in Merca, Somalia, was diagnosed with smallpox by the smallpox eradication staff. Maalin was isolated and made a full recovery. Maalin died of malaria on Jul. 22, 2013 while working in the polio eradication campaign. The World Health Organization declared the eradication of smallpox in 1980.