Smallpox in a border area.
D000293:Adolescent; D002050:Burkina Faso; D002648:Child; D002675:Child, Preschool; D004196:Disease Outbreaks; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008302:Mali; D012899:Smallpox / Q000453:epidemiology* / Q000517:prevention & control; D014611:Vaccination