Table 1.

Clinical case definition of tuberculosis^*

A. Suspect Tuberculosis	B. Probable Tuberculosis	C. Confirmed Tuberculosis
An ill child with history of contact with a confirmed case of pulmonary tuberculosis Any child 2.1 Not regaining normal health after measles or whooping cough. 2.2 With loss of weight, cough and wheeze not responding to antiobiotic therapy for respiratory infection. 2.3 With painless swelling in a group of superficial lymph notes	A suspsect case with any of the following: A positive tuberclin test Suggestive appearance on chest radiograph Suggestive histologic appearence of biopsy material. Favourable response to specific anti-tuberculous therapy‡	1. Detection by microscopy or culture of tubercle bacili from secretions or tissues, or 2. The identification of the tubercle bacili as Mycobacterium tuberculosis by culture

^‡Response to anti-tuberculosis therapy was not used as a criterion in defining probable TB in this group.

^*From WHO provisional guidelines for the diagnosis and classification of EPI target diseases.⁵