A 12-year-old boy with acute gastroenteritis caused by Edwardsiella tarda O4:H4.

ABSTRACT

A 12-year-old boy was brought to the hospital with a 3-week history of watery diarrhea mixed with mucus and colicky abdominal pain. Stool culture identified Edwardsiella tarda O4 H4, and no other pathogenic bacteria were detected. Acute gastroenteritis caused by Edwardsiella tarda O4 H4 was diagnosed. This bacterium was shown to be sensitive to ampicillin hydrate. When this antibiotic was administered, the condition of the patient improved within a week. The patient had a history of eating raw shrimp and fish while traveling with his parents.