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Enterobius gregorii Hugot, 1983 recovered from school children in Kangwon-Do, Korea
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Korean J Parasito > Volume 30(3):1992 > Article

Original Article
Korean J Parasitol. 1992 Sep;30(3):163-167. English.
Published online Mar 20, 1994.  http://dx.doi.org/10.3347/kjp.1992.30.3.163
Copyright © 1992 by The Korean Society for Parasitology
Enterobius gregorii Hugot, 1983 recovered from school children in Kangwon-Do, Korea
Y K Ahn,P R Chung,* and C T Soh**
Department of Parasitology, Yonsei University Wonju College of Medicine, Korea.
Abstract

Hugot (1983), Hugot and Tourte-Schaefer (1985) reported that nematodes of the genus Enterobius causing human enterobiasis might be classified into two different species on the basis of the size and shape of spicule in male worms. E. gregorii Hugot, 1983 has significantly shorter spicules in males than those in E. vermicularis. A total of 194 male Enterobius were collected from 17 schoolchildren by anthelmintics at Wonju, Kangwon-do. The sizes of spicules and morphologies were comparatively observed. Two different types of spicules in male Enterobius were also observed in Korea. Out of 112 male worms observed, the percentages of E. gregorii (short-spicule type) and E. vermicularis (long-spicule type) were 23.2% and 76.8%, respectively.

Figures


Figs. 1-4
Fig. 1 & 2. Whole worms of Enterobius vermicularis (1) and E. gregorii (2) (scale: 0.6mm).

Fig. 3A & 3B. Posterior end of a male E. vermicularis (long-spicule type).

Fig. 4A & 4B. Posterior end of a male E. gregorii (short-spicule type) (scale: 50 µm).



Figs. 5-7
Fig. 5. Spicule of a male E. vermicularis.

Fig. 6. High-powered magnification of Fig. 4A (scale: 30 µm).

Fig. 7. High-powered magnification of Fig. 3A (scale: 30 µm). Abbreviations:BP, Basal portion; CA, Cephalic alae; Ca-Pap., Caudal papillae; CS, Copulatory spicule; DTP, Distal tubular portion; E, Esophagus; EB, Esophageal bulb; Int, Intestine; T, Testis.


Tables


Table 1
Measurements of Enterobius sp. male worms detected from Korean children (unit: µm)


Table 2
Comparison of spicule lengths in human Enterobius sp. by reporters

References
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