Listeria meningitis presenting as enteritis in a previously healthy infant: a case report.

A previously healthy 1-year-old infant was admitted with pyrexia and mild gastro-intestinal symptoms. A blood culture, taken on admission, showed growth of Listeria monocytogenes (serotype 4b) on the 3rd day, at which time a lumbar puncture revealed a listeric meningitis. Despite the delay of antibiotic treatment, the infant never showed any neurological symptoms. She recuperated without any residual effects.