Morganella morganii, subspecies morganii, biogroup A: An unusual causative pathogen of brain abscess.

Morganella morganii is a gram negative aerobe , found often as intestinal commensal. It is commonly implicated in Urinary tract infections and pyogenic infections, but rarely causes CNS infections especially brain abscess. There are very few published reports of Morganella morganii as a causative pathogen in brain abscess.