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Korean J Parasitol > Volume 22(1):1984 > Article

Case Report
Korean J Parasitol. 1984 Jun;22(1):61-65. English.
Published online Mar 20, 1994.  http://dx.doi.org/10.3347/kjp.1984.22.1.61
Copyright © 1984 by The Korean Society for Parasitology
Fifteen human cases of Fibricola seoulensis infection in Korea
Sung Tae Hong,Tai Kwon Cho,*Sung Jong Hong,Jong Yil Chai,Soon Hyung Lee and Byong Seol Seo
Department of Parasitology, College of Medicine, Seoul National University, Korea.
*Department of Otolaryngology and Institute of Endemic Diseases, College of Medicine, Seoul National University, Korea.
Abstract

A mass fecal examination was performed in Seoul, Korea from December 1983 to March 1984 and 15 egg positive cases of Fibricola seoulensis were discovered. They were treated with praziquantel(Distocide) 20 mg/kg single dose and magnesium salt for purgation. The adult worms of F. seoulensis were collected from 6 of them. The number of the flukes ranged 1-78 by the case. The cases had no clinical mainfestation at all. They were all Korean males in twenties, and had the histories of eating the roast or raw snakes or frogs. Fibricoliasis is expected to be prevalent among the snake-eaters in Korea. Further cases will be detected by sedulous differentiation of thin-shelled immature operculated eggs of 0.081-0.102mmn length. Praziquantel seems to be an excellent chemotherapeutic for fibricoliasis.

Figures


EXPLANATIONs FOR FIGURES
Fig. 1. Egg of F. seoulensis photographed ×400, with typical size, shape and distinct operculum.

Fig. 2.Ibid, short, stout and blunt ended, distinct operculum.

Fig. 3.Ibid, short, almost symmetric and diagonal shaped.

Fig. 4.Ibid, long, asymmetric and distinct operculum.

Fig. 5.Ibid, long and slender, symmetric.

Fig. 6.Ibid, long and stout.

Fig. 7.Ibid, average sized with blunt ends.

Fig. 8.Ibid, long and distinct operculum.

Fig. 9.Ibid, oval shaped but asymmetric.


Tables


Table 1
Egg counting. Worm collection and history of 15 F. seoulensis egg positive cases


Table 2
Measurements of F. seoulensis egg from human feces (in mm)


Table 3
The number of eggs grouped by their length

References
1. Cho SY, et al. Chung-Ang J Med 1983;8(1):13–27.
2. Hong ST, Hong SJ, Lee SH, Seo BS, Chi JG. Studies On Intestinal Trematodes In Korea: VI. On The Metacercaria And The Second Intermediate Host Of Fibricola Seoulensis. Korean J Parasitol 1982;20(2):101–111.
 
3. Seo BS, Cho SY, Hong ST, Hong SJ, Lee SH. Studies On Parasitic Helminths Of Korea 5.Survey On Intestinal Trematodes Of House Rats. Korean J Parasitol 1981;19(2):131–136.
 
4. Seo BS, Lee SH, Hong ST, Hong SJ, Kim CY, Lee HY. Studies On Intestinal Trematodes In Korea: V. A Human Case Infected By Fibricola Seoulensis (Trematoda: Diplostomatidae). Korean J Parasitol 1982;20(2):93–99.
 
5. Seo BS, Rim HJ, Lee CW. Studies on the parasitic helmiths of Korea: I. Trematodes of rodents. Korean J Parasitol 1964;2(1):20–26.
 
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