VARIOLA MINOR IN A PRIMARY SCHOOL.
D000293:Adolescent; D001938:Brazil; D002648:Child; D004813:Epidemiology; D006801:Humans; D012572:School Health Services; D012574:Schools; D012899:Smallpox; D012900:Smallpox Vaccine; D012901:Variola virus
D012900:Smallpox Vaccine
ADOLESCENCE; BRAZIL; CHILD; EPIDEMIOLOGY; SCHOOL HEALTH; SMALLPOX; SMALLPOX VACCINE