Table 1.

World Health Organization Criteria for the Diagnosis of Childhood Tuberculosis (TB).

The presence of 3 or more of the following should strongly suggest a diagnosis of TB
Parameters	Definition
History	A history of recent close contact (within the past 12 months)
Symptom criteria suggestive of TB	Persistent, nonremitting cough for >2 weeks not responding to conventional antibiotics and/or bronchodilators and/or Persistent documented fever (>38°C/100°F) >2 weeks and/or Documented weight loss or not gaining weight during the past 3 months OR severe malnutrition, and/or Fatigue and reduced playfulness
Physical signs highly of suggestive of TB	Gibbus, cervical lymphadenopathy, nonpainful pleural/pericardial effusion, meningitis not responding to antibiotics, ascites, nonpainful enlarged joints, phlyctenular conjunctivitis, erythema nodosum
A positive tuberculin skin test	For children with severe malnutrition or HIV, 5 mm or more; for others, 10 mm or more
Chest X-ray suggestive of TB	End point consolidation, other infiltrate, hilar or para-tracheal lymphadenopathy