Epidemiology in the global eradication of smallpox.
D000349:Africa; D006801:Humans; D007214:Indonesia; D010154:Pakistan; D012899:Smallpox / Q000453:epidemiology* / Q000517:prevention & control*; D012900:Smallpox Vaccine / Q000008:administration & dosage; D013020:South America; D014611:Vaccination; D014944:World Health Organization
D012900:Smallpox Vaccine