Recurrent meningitis secondary to isolated C3 deficiency.

A 5-year-old child presented with the second episode of meningitis when we started investigating her to find a cause for recurrent episode of meningitis. During this she suffered from a third attack after which she was diagnosed as having isolated C(3) deficiency. She was put on penicillin prophylaxis and vaccinated against encapsulated bacteria, after which she is now doing well.