Positive tuberculin and primary tuberculosis. Frequency among non-BCG children of 0-4 years. (preliminary report).
D001500:BCG Vaccine; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D014374:Tuberculin Test; D014397:Tuberculosis, Pulmonary / Q000175:diagnosis*
D001500:BCG Vaccine