Chemoprophylaxis against tuberculosis.
D000328:Adult; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007538:Isoniazid / Q000627:therapeutic use*; D008297:Male; D011247:Pregnancy; D014374:Tuberculin Test; D014376:Tuberculosis / Q000517:prevention & control*
D007538:Isoniazid