| tuberculosis is the commonest cause of pneumonia requiring hospitalization during hajj (pilgrimage to makkah). | the diagnosis and treatment of pneumonia in mass gathering situations is a medical challenge, requiring prompt decision making and knowledge of the aetiology. we studied cases of pneumonia admitted to two hospitals during the 1994 pilgrimage (hajj) season to makkah. sixty-four patients were enrolled in the study, of which 47 (75%) were men with a mean age of 63 years (range 21-91). nearly all were from developing countries. diagnosis was established in 46 patients (72%) with mycobacterium tuberc ... | 1998 | 9661941 |