1.Spargana in a Weasel, Mustela sibirica manchurica, and a Wild Boar, Sus scrofa, from Gangwon-do, Korea.
Seung Ha LEE ; Eun Yoon CHOE ; Hyun Duk SHIN ; Min SEO
The Korean Journal of Parasitology 2013;51(3):379-381
To know the status of sparganum (plerocercoid of Spirometra erinacei) infection in the Korean wild life, several species of wild animals were captured in Gangwon-do and examined for their status of infection with spargana. From February to December 2011, a total of 62 wild boars, 5 badgers, 1 weasel, 1 Siberian chipmunk, and 53 wild rodents were captured, and their whole muscles were examined with naked eyes for the presence of spargana worms. From the weasel and 1 wild boar, a total of 5 spargana specimens were extracted. The weasel was for the first time recorded as an intermediate or paratenic/transport host of S. erinacei in Korea, and both the weasel (Mustela sibirica manchurica) and wild boar (Sus scrofa) were added to the list of wild animals carrying spargana.
Animals
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*Mustelidae
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Republic of Korea
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Sparganosis/epidemiology/*veterinary
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*Sus scrofa
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Swine
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Swine Diseases/epidemiology/*parasitology
2.First Record of Bourgelatia diducta (Nematoda: Chabertiidae) from Wild Boars in the Republic of Korea.
Kyu Sung AHN ; Dae Sung OH ; Ah Jin AHN ; Guk Hyun SUH ; Sung Shik SHIN
The Korean Journal of Parasitology 2013;51(4):441-448
This study describes the first record of Bourgelatia diducta (Nematoda: Chabertiidae) from wild boars in the Republic of Korea (=South Korea). Gastrointestinal tracts of 87 Korean wild boars (Sus scrofa coreanus) hunted in mountains in the south-western part of South Korea between 2009 and 2012 were examined for their visceral helminths. B. diducta, as identified by morphological characteristics of the head and tail, were recovered from the large intestine of 47 (54%) wild boars. The average length of adult female worms was 11.3+/-0.87 mm and the thickest part of the body measured 0.54+/-0.04 mm in maximum width, while those of males were 9.8+/-0.72 and 0.45+/-0.03 mm, respectively. The characteristic J-shaped type II ovejector was observed in females, and the type II dorsal ray with 2 rami on each side of the median fissure was uniquely seen in males. The buccal capsule was small, relatively thin-walled, cylindrical, very short, and ring-shaped. The externodorsal ray arose from a common stem with the dorsal ray. The cervical groove was absent. The anterior extremity was equipped with 20-22 external corona radiata, 4 cephalic papillae and 2 lateral amphids around the mouth. The eggs were 66.0x38.9 microm in average size. By the present study, B. diducta (Nematoda: Chabertiidae) is recorded for the first time in South Korea. Additionally, morphological characteristics and identification keys provided in the present study will be helpful in the faunistic or taxonomic studies for strongylid nematodes related.
Animals
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Female
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Helminthiasis, Animal/*parasitology
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Male
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Nematoda/anatomy & histology/growth & development/*isolation & purification
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Republic of Korea
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Sus scrofa/*parasitology
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Swine
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Swine Diseases/*parasitology
3.Identification and Prevalence of Globocephalus samoensis (Nematoda: Ancylostomatidae) among Wild Boars (Sus scrofa coreanus) from Southwestern Regions of Korea.
Kyu Sung AHN ; Ah Jin AHN ; Tae Hoon KIM ; Guk Hyun SUH ; Kyoung Woong JOO ; Sung Shik SHIN
The Korean Journal of Parasitology 2015;53(5):611-618
This study describes the first record of Globocephalus samoensis (Nematoda: Ancylostomatidae) recovered in wild boars from southwestern regions of Korea. Gastrointestinal tracts of 111 Korean wild boars (Sus scrofa coreanus) hunted from mountains in Suncheon-si, Gwangyang-si, and Boseong-gun between 2009 and 2012 were examined for their visceral helminths. G. samoensis, as identified by morphological characteristics of the head and tail, were recovered from the small intestine of 51 (45.9%) wild boars. Worms were found from 7 of 28 wild boars (25.0%) from Suncheon-si, 40 of 79 (50.6%) from Gwangyang-si, and all 4 (100%) from Boseong-gun. The length of adult females was 7.2+/-0.5 mm, and the thickest part of the body measured the average 0.47+/-0.03 mm, while those of males were 6.52+/-0.19 and 0.37+/-0.02 mm, respectively. The buccal cavity was equipped with a pair of large and bicuspid subventral lancets near the base of the capsule. The average length of spicules of males was 0.45+/-0.02 mm. By the present study, G. samoensis is recorded for the first time in southwestern regions of Korea. Additionally, morphological characteristics and identification keys provided in the present study will be helpful in the faunistic and taxonomic studies for strongylid nematodes in both domestic and wild pigs. The infection of G. samoensis apparently did not elicit pathologic lesions, as revealed by macroscopic observation during the autopsy of all wild boars in this study.
Ancylostomatoidea/anatomy & histology/*isolation & purification
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Animals
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Biometry
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Female
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Gastrointestinal Tract/parasitology
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Helminthiasis/epidemiology/parasitology
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Hookworm Infections/epidemiology/parasitology/*veterinary
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Intestinal Diseases, Parasitic/epidemiology/parasitology/*veterinary
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Male
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Microscopy
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Prevalence
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Republic of Korea/epidemiology
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Sus scrofa/*parasitology
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Swine
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Swine Diseases/*epidemiology/*parasitology
4.An Outbreak of Trichinellosis with Detection of Trichinella Larvae in Leftover Wild Boar Meat.
Gayeon KIM ; Min Ho CHOI ; Jae Hwan KIM ; Yu Min KANG ; Hee Jung JEON ; Younghee JUNG ; Myung Jin LEE ; Myoung don OH
Journal of Korean Medical Science 2011;26(12):1630-1633
The clinical diagnosis of trichinellosis can be difficult due to lack of pathognomonic signs or symptoms. In Korea, since the first report of human infection by Trichinella spiralis in 1997 following the consumption of raw badger meat, there have been occasional trichinellosis outbreaks. We describe an outbreak of 12 cases of trichinellosis in Korea and implicate raw wild boar meat as the culprit. A total of 27 larvae of Trichinella (0.54 larvae per gram of meat) were recovered from the leftover raw wild boar meat.
Aged
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Albendazole/therapeutic use
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Animals
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Anthelmintics/therapeutic use
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*Disease Outbreaks
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Female
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Humans
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Larva
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Male
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Meat/*parasitology
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Middle Aged
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Republic of Korea/epidemiology
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Sus scrofa
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Trichinella spiralis/*isolation & purification
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Trichinellosis/diagnosis/drug therapy/*epidemiology/parasitology
5.Seroprevalence of Trichinella sp. in Wild Boars (Sus scrofa) from Yanggu-gun, Gangwon-do, Korea.
Hye Jung LEE ; Ok Sik CHUNG ; Jae Lip KIM ; Seung Ha LEE ; Young Bok YOO ; Min SEO
The Korean Journal of Parasitology 2015;53(2):233-236
A total 7 outbreaks of trichinellosis have occurred in Korea, mostly as a result of consumption of raw wild boar (Sus scrofa) meat. Since only 1 serological survey on wild boars had yet been performed in Korea, the present study aimed to estimate the prevalence of trichinellosis in wild boars and some species of rodents by artificial digestion and serological examinations in Yanggu-gun, Gangwon-do, the endemic area of trichinellosis. Both the wild boar and rodent muscle samples revealed no Trichinella larvae by direct examination and artificial digestion method. However, serological examinations revealed that 4 wild boar sera samples out of 118 (3.4%) were positive to Trichinella antigen. Although the recovery of Trichinella larvae ended in a failure, it is proved for the first time that the sylvatic cycle of Trichinella has been maintained in wild boars of Gangwon-do, Korea.
Animals
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Antibodies, Helminth/*blood
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Antigens, Helminth/blood
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Female
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Male
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Republic of Korea/epidemiology
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Seroepidemiologic Studies
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Sus scrofa
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Swine
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Swine Diseases/*blood/diagnosis/epidemiology/parasitology
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Trichinella/classification/genetics/immunology/*isolation & purification
6.The Fifth Outbreak of Trichinosis in Korea.
Ji Young RHEE ; Sung Tae HONG ; Hye Jung LEE ; Min SEO ; Suk Bae KIM
The Korean Journal of Parasitology 2011;49(4):405-408
Trichinosis is a food-borne zoonotic disease caused by the nematode, Trichinella spp., and had been reported several times in Korea. Recently, there was an additional outbreak, involving 5 patients, the findings from which are reported herein. On 30 November 2010, 8 persons ate sashimi of the meat of a wild boar. Then, 2-3 weeks later, they complained of myalgia and fever. Unfortunately, muscle biopsy was not performed, but ELISA was performed using their sera. Two people among 8 were positive for Trichinella on the 34th day post-infection (PI), and 3 patients who initially revealed negative ELISA were additionally proved to be positive for trichinosis on the 42nd day PI. Hence, the confirmed patients of trichinosis were 5 in total in the present outbreak. They were treated with albendazole and discharged uneventfully. This was the fifth outbreak of trichinosis in Korea.
Adult
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Albendazole/therapeutic use
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Animals
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Anthelmintics/therapeutic use
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Antibodies, Helminth/blood
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Disease Outbreaks/*veterinary
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Enzyme-Linked Immunosorbent Assay
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Female
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Foodborne Diseases/drug therapy/*epidemiology/parasitology
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Humans
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Male
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Meat/*parasitology
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Middle Aged
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Republic of Korea/epidemiology
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Sus scrofa/parasitology
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Swine
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Swine Diseases/parasitology/transmission
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Treatment Outcome
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Trichinella/immunology/*isolation & purification
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Trichinellosis/diagnosis/drug therapy/*epidemiology
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Zoonoses