February 9, 2019

The most common of the 15 reported Echinostoma species in humans are E. ilocanum in the Philippines and Thailand, and both E. malayanum and E. revolutum. The trematode species Echinostoma ilocanum reaches a size of 7 x mm and parasitizes in the small intestine of humans and of many mam- mals (e.g., dogs). PDF | On Jul 1, , M Grover and others published Echinostoma Ilocanum Infection.

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Shown here are eggs EG within the olocanum range for Echinostoma spp. Some of them suffered from occasional gastrointestinal discomfort, indigestion, and diarrhea. Echinostoma are internal digenean trematode parasites which infect the intestines and bile duct [3] of their hosts. For an overview including prevention and control visit www. December 28, Page last updated: They have an inconspicuous operculum and the abopercular end is often thickened.

The diarrheic feces were collected and processed as previously described [ 4 ].

Echinostoma ilocanum Infection in Oddar Meanchey Province, Cambodia

When the eggs are in contact with fresh water they may become embryonated, and will then hatch and release miracidia. Adults reside in the small intestine of the definitive host. Worldwide, but human cases are seen most-frequently in southeast Asia and in areas where undercooked or raw freshwater snails, clams and fish are eaten.

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Enter Email Address What’s this? Echinostoma ilocanumworm recovery, trematode, echinostome, Cambodia. Intermediate hosts of Echinostoma spp. Several genera of snails may serve as the first intermediate host.

Fecal examination and anthelmintic treatment of villagers were officially approved by the Ministry of Health, Cambodia, under the agreement of the Korea-Cambodia International Collaboration on Intestinal Parasite Control in Cambodia In heavy infections, nausea, vomiting, diarrhea, fever and abdominal pain may occur.

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Echinostoma ilocanum

Structures illustrated in this figure include: In order to recover the adult echinostomes, 2 males aged 16 and 36 years among the symptomatic patients were selected for anthelmintic treatment and purging.

However, if the worm load is higher, significant clinical manifestations may occur [ 9 ]. In June and Novemberwe examined stools of 1, villagers, which consisted of students and general inhabitants, in 7 small villages in Oddar Meanchey Province located in northwestern Cambodia near the border with Thailand using the Kato-Katz technique.

National Center for Biotechnology InformationU. The overall intestinal helminth egg positive rate was Find articles by Muth Sinuon.


Echinostomiasis can be treated with the anthelmintic drug praziquantelas for other intestinal trematode infections. Abstract Fecal examinations using the Kato Katz technique were performed on a total of 1, villagers students and general inhabitants of Oddar Meanchey Province, Cambodia in May and November olocanum Author information Article notes Copyright and License information Disclaimer.


The main source of human infection is large freshwater snails, Pila luzonica echinoshoma the Philippines and Viviparus javanicus in Indonesiaand rats and dogs are animal reservoir hosts [ 1 ].

Higher magnification of the posterior end of the specimen in Figure A. The definitive host becomes infected after eating infected second intermediate hosts.

Open in a separate window. Eggs are passed unembryonated in feces.

Echinostoma Two specimens of Echinostoma revolutum Scientific classification Kingdom: Image Gallery Echinostoma spp. Eggs of Echinostoma spp. A close up view up and line drawing down of the head collar and 49 collar spines of E.

Retrieved from ” https: In Cambodia, similar types of local food are available, and such dishes may have been the source of infection in our cases. Canadian Journal of Zoology.

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Find articles by Jong-Yil Chai. Views Read Edit View history. The results show the presence of human E.