Epidemiological Survey on the Infection of Intestinal Flukes in Residents of Muan-gun, Jeollanam-do, the Republic of Korea

Cho, Dae Won; Cho, Pyo Yun; Lee, Dong Min; Kim, Tong Soo; Kim, In Sang; Hwang, Eun Jung; Na, Byoung Kuk; Sohn, Woon Mok

doi:10.3347/kjp.2010.48.2.133

Cited by 23 publications

(24 citation statements)

References 21 publications

(29 reference statements)

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“…The trends of metacercarial infection in this study, the higher prevalence and higher intensity in mullets from the coastal areas in Yellow Sea than in other 2 Seas, were similar to those of Guk et al [ 17 ], although each data of this study was much higher. This endemic trend of P. summa metacercariae in mullets coincided well with the trend that human cases with this fluke have been mainly reported in the western and southern coastal areas, i.e., Okgu-gun and Buan-gun (Jeollabuk-do), Shinan-gun, Muan-gun, Gangjin-gun, Haenam-gun, and Youngam-gun (Jeollanam-do), in Korea [ 4 - 11 ]. Among 18 surveyed areas, 5 areas, including Muan-gun, Shinan-gun, Gangjin-gun, Sacheon-si, and Yeongdeok-gun, were the same regions as in Guk et al [ 17 ].…”

Section: Discussionsupporting

confidence: 80%

“…Their prevalences were 42-100%, and the intensities were 4-271 metacercariae per fish infected [ 17 ]. On the other hand, it has been known that H. nocens is the dominant intestinal fluke species among the residents of western and southern coastal areas, i.e., Buan-gun, Muan-gun, Shinan-gun, Gangjin-gun, and Sacheon-si, in Korea [ 4 - 11 ]. Accordingly, by the present study, it became clear that the endemic areas of H. nocens are closely related to the distribution of mullets highly infected with the metacercariae of this species.…”

Section: Discussionmentioning

confidence: 99%

“…Human infections with this fluke were confirmed by detection of eggs in the feces and also adult flukes in Japan [ 2 , 3 ]. In the Republic of Korea (Korea), human cases have been sporadically reported from western and southern coastal areas, i.e., Okgu-gun and Buan-gun (Jeollabuk-do), Shinan-gun, Muan-gun, Gangjin-gun, Haenam-gun, and Yeoungam-gun (Jeollanam-do) [ 4 - 11 ]. Some species of brackish water fish, namely, M. cephalus , Liza haematocheila , and Acanthogobius flavimanus , are known to be the source of human infections and second intermediate hosts of this fluke [ 12 - 17 ].…”

Section: Introductionmentioning

confidence: 99%

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Pygidiopsis summa (Digenea: Heterophyidae): Status of Metacercarial Infection in Mullets from Coastal Areas in the Republic of Korea

Sohn

Cho

et al. 2016

Korean J Parasitol

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To know the infection status of zoonotic trematode metacercariae in brackish water fish, we surveyed mullets collected from 18 coastal areas in the Republic of Korea. The metacercariae of Pygidiopsis summa were detected in 236 (68.2%) out of 346 mullets examined. They were found in mullets from 15 areas except for those from Boseong-gun (Jeollanam-do), Pohang-si, and Uljin-gun (Gyeongsangbuk-do). Especially in mullets from Taean-gun (Chungcheongnam-do) and Geoje-si (Gyeongsangnam-do), their prevalences were 100% and 95.5%, and the average metacercarial density was more than 1,000 per fish. They were also detected in mullets from 3 coastal lakes, Gyeongpoho, Songjiho, and Hwajinpoho, in Gangwon-do, and their average densities were 419, 147, and 672 per infected fish, respectively. The metacercariae of 5 other heterophyid species, including Heterophyes nocens, Heterophyopsis continua, Metagonimus sp., Stictodora fuscata, and Stictodora lari, were found in the mullets examined. The metacercariae of H. nocens were detected in 66.7, 100, 28.6, 81.6, 3.9, 61.5, and 27.3% of mullets from Muan-gun, Shinan-gun, Haenam-gun, Gangjin-gun, and Boseong-gun (Jeollanam-do), Hadong-gun, and Geoje-si (Gyeongsangnam-do), and their metacercarial intensities were 64, 84, 119, 99, 1, 24, and 24 per fish infected, respectively. From the above results, it has been confirmed that P. summa metacercariae are heavily infected in mullets from coastal areas of Korea. It is suggested that residents who frequently consume raw mullet dish can be easily infected with heterophyid flukes.

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Section: Discussionsupporting

confidence: 80%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Pygidiopsis summa (Digenea: Heterophyidae): Status of Metacercarial Infection in Mullets from Coastal Areas in the Republic of Korea

Sohn

Cho

et al. 2016

Korean J Parasitol

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“…Stellantchasmus falcatus (Digenea: Heterophyidae) is one of the zoonotic intestinal flukes, which has been reported in many Asian-Pacific countries, such as Japan, the Philippines, Hawaii, Palestine, Thailand, Vietnam, and the Republic of Korea (Korea) [ 1 - 12 ]. Several species of fish, such as Mugil cephalus, Liza haematocheila, Acanthogobius flavimanus, Dermogenus pusillus, Xenentodon canciloides, Osphronemus gourami, Cyprinus carpio, and Ctenopharyngodon idella , were reported as the second intermediate hosts and the source of human infections [ 13 - 21 ].…”

mentioning

confidence: 99%

Stellantchasmus falcatus (Digenea: Heterophyidae) in Cambodia: Discovery of Metacercariae in Mullets and Recovery of Adult Flukes in an Experimental Hamster

Chai

Sohn

et al. 2016

Korean J Parasitol

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Stellantchasmus falcatus (Digenea: Heterophyidae) is first reported from Cambodia through recovery of the metacercariae from mullet fish and adult flukes from an experimentally infected hamster. We purchased 7 mullets, Chelon macrolepis, in a local market of Phnom Penh, Cambodia, and each of them was examined by the artificial digestion method on May 2010. The metacercariae of S. falcatus were detected in all mullets (100%) examined, and their average density was 177 per fish. They were elliptical, 220×168 μm in average size. They were orally infected to an hamster to obtain adult flukes. Adults recovered at day 10 post infection were observed with a light microscope and a scanning electron microscope (SEM). They were small, 450×237 μm in average size, had a small oral sucker (41×50 μm), subglobular pharynx (29×21 μm), slender esophagus (57 μm), long and thick-walled expulsor (119×32 μm), spherical ovary (58×69 μm), and 2 ovoid testes (right: 117×74 μm; left: 114×63 μm). Eggs were small, yellow, and 23×12 μm in average size. In SEM observations, tegumental spines were densely distributed on the whole tegument, and single small type I sensory papillae were distributed around the lip of oral sucker. The small ventral sucker was dextrally located and had 8 type I sensory papillae on the left margin. It has been first confirmed in the present study that the mullet, C. macrolepis, is playing the role of a second intermediate host of S. falcatus in Cambodia.

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“…The present study is the second report on human A. felis infection following the report of Cho et al [10]. This fluke should be included among the list of human-infecting foodborne intestinal flukes in Korea [14] and Asia [15].…”

Section: Discussionmentioning

confidence: 91%

Four Human Cases of Acanthotrema felis (Digenea: Heterophyidae) Infection in Korea

2014

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Acanthotrema felis is an intestinal trematode of cats originally reported from the Republic of Korea. Only 1 human case infected with a single adult worm has been previously recorded. In the present study, we report 4 human cases infected with a total of 10 worms recovered after anthelmintic treatment and purging. All 4 patients reside in coastal areas of Jeollanam-do, Korea, and have consumed brackish water fish including the gobies, Acanthogobius flavimanus. The worms averaged 0.47 mm in length and 0.27 mm in width, and had 3 sclerites on the ventrogenital sac; 1 was short and thumb-like, another was long and blunt-ended, and the 3rd was long and broad-tipped. They were identified as A. felis Sohn, Han, & Chai, 2003. Surveys on coastal areas to detect further human cases infected with A. felis are required.

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Epidemiological Survey on the Infection of Intestinal Flukes in Residents of Muan-gun, Jeollanam-do, the Republic of Korea

Cited by 23 publications

References 21 publications

Pygidiopsis summa (Digenea: Heterophyidae): Status of Metacercarial Infection in Mullets from Coastal Areas in the Republic of Korea

Pygidiopsis summa (Digenea: Heterophyidae): Status of Metacercarial Infection in Mullets from Coastal Areas in the Republic of Korea

Stellantchasmus falcatus (Digenea: Heterophyidae) in Cambodia: Discovery of Metacercariae in Mullets and Recovery of Adult Flukes in an Experimental Hamster

Four Human Cases of Acanthotrema felis (Digenea: Heterophyidae) Infection in Korea

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