Listeria meningitis during treatment of a meningococcal meningitis in an immunocompetent infant.

A case report of a listeria meningitis 5 days after diagnosis of meningococcal meningitis in a immunocompetent child of 2 years is presented. The infection occurred during hospital admission. Culture results of cerebrospinal fluid (CSF) were confirmed by a listeria-specific polymerase chain reaction in 2 CSF specimens. The listeria meningitis quickly responded to antimicrobial treatment with intravenous amoxicillin combined with tobramycin.