Smallpox control.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D004196:Disease Outbreaks / Q000517:prevention & control; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D012899:Smallpox / Q000517:prevention & control*; D012900:Smallpox Vaccine; D006113:United Kingdom; D014611:Vaccination
D012900:Smallpox Vaccine