A Case of Diphyllobothrium yonagoense Infection

Abstract

A human case of Diphyllobothrium yonagoense infection was found by morphological study of a strobila recovered from a 65-year old man in March 1982. The patient, a seaside villager of Wando-gun, Chollanam-do (Province), revealed diphyllobothriid eggs (64-68 X 46-49 urn in size) in his feces, and discharged a tapeworm strobila, 3.2 m long, after treatment with 40 mg/kg bithionol and purgation. The segments were characterized morphologically by parallel uterine loops, large thick-walled seminal vesicle, and thickshelled eggs with deep pits, which were compatible with Diphyllobothrium yonagoense Yamane et 01., 1981.