Bacteroides fragilis meningitis successfully treated with metronidazole after a previous failure with thiamphenicol

Abstract

A case of pyogenic meningitis caused by Bacteroides fragilis in a 72-year-old woman is reported. Although the isolate was susceptible to thiamphenicol, the patient did not respond to this drug. Metronidazole, which showed high bactericidal activity, was administered and achieved sterilization of the cerebrospinal fluid and complete clinical response.