Incidence of trachoma in primary school children of Tirupati.
D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007194:India; D008297:Male; D012737:Sex Factors; D014141:Trachoma / Q000453:epidemiology*