Smallpox.
D003140:Communicable Disease Control / Q000458:organization & administration; D004196:Disease Outbreaks / Q000517:prevention & control; D006801:Humans; D012899:Smallpox / Q000453:epidemiology / Q000517:prevention & control / Q000635:transmission; D012900:Smallpox Vaccine / Q000008:administration & dosage / Q000009:adverse effects
D012900:Smallpox Vaccine