Résumé
In the present study the frequency of bacterial [including tuberculous meningitis], viral and fungal meningitis occurrence in Gadap Town, Karachi, Pakistan has been determined. It is a population-based descriptive study which was carried out in Fatima Laboratory Hospital, Baqai Medical University, Karachi from November 2013 to November 2014. A total of 100 cases of meningitis were reported in the hospital during the study period. The physical, chemical and microscopic examinations of the samples were performed following the criteria of the Centers for Disease Control and Prevention [CDC]. In biochemical analysis, glucose was estimated by hexokinase method whereas protein was estimated by calorie method of molybdate. The results of the analysis indicated that the incidence of bacterial meningitis was highest [65%] in the studied population, in which 30% cases were diagnosed with tuberculous meningitis and 35% with other bacterial infections. In the remaining cases, the fungal meningitis [20%] was second most common followed by viral meningitis [15%]