Korean J Parasitol.
1985 Jun;23(1):33-40. 10.3347/kjp.1985.23.1.33.
Two cases of natural human infection by Echinostoma hortense and its second intermediate host in Wonju area
- Affiliations
-
- 1Department of Public Health and Administration and Parasitology, Wonju Medical College, Yonsei University, Korea.
- 2Department of Clinical Pathology, Wonju Christian Hospital, Wonju Medical College, Korea.
- 3Department of Internal Medicine, Wonju Christian Hospital, Wonju Medical College, Korea.
- KMID: 1715158
- DOI: http://doi.org/10.3347/kjp.1985.23.1.33
Abstract
- Two cases of human Echinostoma hortense infection and their probable infection source were identified by praziqantel (Distocide) treatment of the patients and by examining two kinds of fresh water fish which were eaten raw by them. The result of the research can be summarized as follows: The patients, each aged 31 and 30, were residing in the same house in Wonju City, Kangwon Province. The first case was hospitalized due to epidemic hemorrhagic fever (E.H. fever) and the second case was healthy but had slight degree of abdominal pain and diarrhea from time to time. In the stool examination, eggs of E. hortense (114.3 x 71.0 micrometer average from the first case and 119.1 x 68.3 micrometer average from the second) were found. By administering single dose of praziquantel (10~15 mg/kg) and purgation with magnesium salt to them, six adults of E. hortense were collected from the diarrheal stools of the second case. By examining 84 Moroco oxycephalus and 20 Carassius carassius which were captured at the place where the two patients had captured and eaten the fresh water fish, the metacercariae of Echinostoma sp. were found from 3 (3.5 percent) M. oxycephalus. After the experimental infection of 3 isolated metacercariae to one albino rat three adults of E. hortense were recovered. By the present study, the two patients revealing the echinostomatid eggs in their stools were proven to be infected with E. hortense and to be the second and third human cases of this fluke infection in Korea. Moroco oxycephalus harboured the metacercariae of E. hortense and appeared to be a new second intermediate host.
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