Neisseria meningitidis is one of the primary pathogens of pyogenic meningitis and has the potential to cause large epidemics. There are 13 serogroups of N. meningitidis that have been identified, six of which (A, B, C, W, X and Y) can cause epidemics. We report a case of acute pyogenic meningitis caused by N. meningitidis in a six-month-old male child who presented with fever of four-day duration and irritable cry for one day. N. meningitidis was isolated from his blood using automated blood culture system. Latex agglutination test for N. meningitidis antigen was positive from cerebrospinal fluid. The baby responded well to Ceftriaxone but developed subdural effusion.
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