A case of Listeria meningoencephalitis complicated by hydrocephalus in an immunocompetent infant.

We report a very unusual case of meningoencephalitis due to Listeria monocytogenes in a 7-month-old immunocompetent boy. Cerebrospinal fluid (CSF) culture was initially negative, but was positive on the seventh day. The disease was complicated by seizures and hydrocephalus managed with temporary ventriculostomy.