Abstract

Yersinia enterocolitica was isolated from a stool specimen of a 11-year-old male patient with gastroenteritis, admitted to Yonsei Medical Center in July 1981. This was the fifth isolate at the Center. From the patient, other enteropathogenic bacteria was not isolated, The isolate showed typical cultural and biochemical characteristics of Y. enterocolitica. The Wauter's biotype was determined to be 3. The isolate was resistant to ampicillin, carbenicillin, cefoxitin and cephalothin, and susceptible to other antimicrobials determined by Kirby-Bauer disc diffusion method. The patient recovered after receiving fluid therapy together with antidiarrheal agent and ampicillin.