Korean J Parasitol.
2011 Sep;49(3):317-321. 10.3347/kjp.2011.49.3.317.
The Jeju Weasel, Mustela sibilica quelpartis, A New Definitive Host for Gnathostoma nipponicum Yamaguti, 1941
- Affiliations
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- 1Department of Veterinary Parasitology, Jeju National University College of Veterinary Medicine, Jeju 690-756, Korea.
- 2Department of Science Education, Jeju National University College of Education, Jeju 690-756, Korea.
- 3Division of Malaria and Parasitic Diseases, National Institute of Health, Centers for Disease Control and Prevention, Osong 363-951, Korea.
- 4Department of Parasitology and Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju 660-751, Korea. wmsohn@gnu.ac.kr
- KMID: 1715660
- DOI: http://doi.org/10.3347/kjp.2011.49.3.317
Abstract
- Adult gnathostomes were discovered in the stomach of the Jeju weasel, Mustela sibilica quelpartis, road-killed in Jeju-do (Province). Their morphological characters were examined to identify the species. Total 50 gnathostome adults were collected from 6 out of 10 weasels examined. In infected weasels, 4-6 worms were grouped and embedded in each granulomatous gastric tumor, except 1 weasel. Male worms were 25.0x1.4 mm in average size, and had a tail with pedunculate papillae, a spicule, and minute tegumental spines. Females were 40.0x2.5 mm in average size, and had a tail without tegumental spines. Pointed and posteriorly curved hooklets were arranged in 8-10 rows on the head bulb. Tegumental spines were distributed from behind the head bulb to the middle portion of the body. The spines were different in size and shape by the distribution level of the body surface. Fertilized eggs were 65.5x38.9 microm in average size, and had a mucoid plug at 1 pole. These gnathostomes from Jeju weasels were identified as Gnathostoma nipponicum Yamaguti, 1941. By the present study, it was confirmed for the first time that G. nipponicum is distributed in Jeju-do, the Republic of Korea, and the Jeju weasel, M. sibilica quelpartis, plays a crucial role for its definitive host.
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