Reinvestigation of smallpox outbreaks.
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D004196:Disease Outbreaks / Q000453:epidemiology*; D004197:Disease Reservoirs; D005260:Female; D006801:Humans; D007194:India; D007223:Infant; D008297:Male; D012899:Smallpox / Q000453:epidemiology*