Meningitis caused by Psychrobacter immobilis in an infant.

Psychrobacter immobilis was isolated from the cerebrospinal fluid (CSF) and blood of a 2-day-old infant who appeared well except for a fever and a full anterior fontanelle. The infant was treated with antibiotics intravenously. After 48 h, he became afebrile and CSF and blood cultures were negative; he was then discharged. After 96 h of incubation, CSF and blood cultures yielded a gram-negative organism, P. immobilis. The child was readmitted to the hospital, and the same organism was again isolated from his blood and CSF.