First report of human infection with Gynaecotyla squatarolae and first Korean record of Haplorchis pumilio in a patient

Chung, Ok-Sik; Lee, Hyejung; Kim, Yoo-Me; Sohn, Woon-Mok; Kwak, Sahng‐June; Seo, Min

doi:10.1016/j.parint.2010.11.003

Cited by 20 publications

(9 citation statements)

References 12 publications

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“…And notably, the first description of Spelotrema brevicaeca was reported in a human autopsy case, 11 additional cases having been found in the Philippines [6,7]. Considering the raw-seafood-eating habit of Koreans, human infection with Spelotrema sp., as seen in the case of G. squatarolae [2], is possible.…”

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Discovery of Endocotyle incana and Spelotrema pseudogonotyla (Digenea: Microphallidae) from Scolopacid Migratory Birds in Korea

Yoo

Chung²,

Seo

2012

Korean J Parasitol

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Migratory birds have been suspected as playing a central role in transmission of various trematodes, but few surveys have been undertaken in the Republic of Korea. In the present study, we describe new fauna of microphallid flukes in Korea. Two species of microphallids were found in the intestines of 2 migratory bird species, namely the red necked stints (Calidris ruficollis) and the terek sandpiper (Xenus cinereus), in a coastal area of Gunsan-si, Jeollabuk-do. The microphallids recovered from the latter were 451 µm in length and 217 µm in width, and the eggs were very small, 13 µm by 8 µm. They had the characteristic extracecal vitellaria intruding into the median posttesticular area, belonging to Endocotyle incana. Another microphallids were discovered from both migratory birds, 417 µm in length and 249 µm in width. The cirrus was projecting into the genital atrium in form of male papilla, and bounded by a muscular flap, termed pseudogonotyl. They were identified as Spelotrema pseudogonotyla in consideration of the distinctive male papilla and pseudogonotyl. Besides these flukes, Maritrema obstipum and Gynaecotyla squatarolae also were recovered. This paper is in fact the first report on the presence of Spelotrema and Endocotyle in Korea.

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“…A total of 21 species, transmitted typically through consumption of raw sea foods, have been reported as the human infecting intestinal flukes in Korea [1,2]. Migratory birds have been suspected of playing a central role in that transmission as their reservoir hosts, but few surveys on the avian trematode fauna have been undertaken.…”

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Discovery of Endocotyle incana and Spelotrema pseudogonotyla (Digenea: Microphallidae) from Scolopacid Migratory Birds in Korea

Yoo

Chung²,

Seo

2012

Korean J Parasitol

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“…from Macrophthalmus japonicus , Gynaecotyla squatarolae , and Microphallus koreana from Macrophthalmus dilatatus [2-5]. As for cases of human infections by microphallids, there have been only a limited number of reports on Spelotrema brevicaeca and G. squatarolae [6,7]. Last year, a 5th species of Microphallidae was discovered in an Asian shore crab, Hemigrapsus sanguineus , caught in Jebu-do, Gyeonggi-do.…”

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“…In any case, a Yubu-do crab survey to establish the life cycle of M. obstipum would be necessary. Certainly, considering the discovery of human G. squatarolae infection [7], surveys on Maritrema spp. infection, among the residents of Yubu-do, would also be needed.…”

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Discovery ofMaritrema obstipum(Digenea: Microphallidae) from Migratory Birds in Korea

Chung¹,

Sohn

Chai

et al. 2011

Korean J Parasitol

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Adults of Maritrema obstipum (Digenea: Microphallidae) were found in the intestines of 4 species of migratory birds, including the sanderling (Crocethia alba), Kentish plover (Charadrius alexandrines), Mongolian plover (Charadrius mongolus), and red-necked stint (Calidris ruficollis), collected from Yubu Island, Chungcheongnam-do, Korea. The worms of were 451×265 µm in size, and were easily identifiable as Maritrema species by the presence of the cirrus sac, and the ring-like distribution of the vitellaria. More specifically, the ejaculatory duct curved posteromedially, and the 2 parts of vitelline follicles were found to be distinct at the posterior end. The eggs were brown-colored, and 19.8×12.3 µm in size. All these findings implicated M. obstipum as the pertinent species of the worms. Beside these, adult worms of Gynaecotyla squatarolae, Parvatrema duboisi, and Acanthoparyphium sp. were also discovered. This is the first report establishing migratory birds as the natural definitive hosts for M. obstipum.

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Intestinal Trematode Infections

Toledo

Muñoz-Antolí²,

Esteban³

2014

Advances in Experimental Medicine and Biology

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First report of human infection with Gynaecotyla squatarolae and first Korean record of Haplorchis pumilio in a patient

Cited by 20 publications

References 12 publications

Discovery of Endocotyle incana and Spelotrema pseudogonotyla (Digenea: Microphallidae) from Scolopacid Migratory Birds in Korea

Discovery of Endocotyle incana and Spelotrema pseudogonotyla (Digenea: Microphallidae) from Scolopacid Migratory Birds in Korea

Discovery ofMaritrema obstipum(Digenea: Microphallidae) from Migratory Birds in Korea

Intestinal Trematode Infections

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