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Echinostoma sp. Classification. Phylum Platyhelminthes (flatworms). Class: Trematoda (Flukes). Order Echinostomatiformes. Family Echinostomatidae. J Travel Med. Sep 1;24(5). doi: /jtm/tax Infection with Echinostoma sp. in a group of travellers to Lake Tanganyika, Tanzania, in January Delineation of the European Echinostoma spp. was carried out based on molecular, morphological and ecological data. The large-scale.

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Echinostoma – Wikipedia

In heavy infections, they can cause mucosal ulceration, bleeding, and severe inflammation in human patients. We thank two anonymous reviewers for their comments on the manuscript. Enter Email Address What’s this? This snail genus has been recorded as a first intermediate host for E. Hypoderaeum conoideum and Echinoparyphium cinctum.

Conclusion We conclude that nad 1 should be the first choice for large-scale barcode-based identification of the species of the ‘ revolutum ‘ group. Recently, metacercariae of Echinochasmus japonicus were reported from a species of freshwater fish, Labeo rohita in Vietnam [ 24 ].

Find articles by Nguyen Van De. Table S1 for details. Rambaut A, Drummond AJ: However, this species is still referred to as E. Three ducks were orally infected with metacercariae each and 2 hamsters were orally infected with 50 metacercariae each. A simple, fast and accurate method to estimate large phylogenies by maximum-likelihood. The first intermediate host for our flukes may be the same or different species of viviparid snails, although this was not confirmed in our study.


The following images were taken from an adult echinostome removed from a colon polyp during routine colonscopy. Testes were tandom, smooth or slightly lobed. Metacercariae excyst in the duodenum and adults reside in the small intestine.

Eggs of Echinostoma spp. Keys to the Trematoda.

Higher magnification of the specimen in Ecbinostoma A-C. Twenty haplotypes were identified in isolates of E. Metacercariae were examined morphologically and measured using a light microscope. Adults reside in the small intestine of the definitive host.

However, a barcode gap i. This article has been cited by other articles in PMC. Life cycle of a new African echinostome species reproducing by parthenogenesis. IG based on cercarial isolates sampled in Germany and Iceland have been published recently Georgieva et al.

The phylogeny of the Lepocreadioidea Platyhelminthes, Digenea inferred from nuclear and mitochondrial genes: Revealing the secret lives of cryptic species: Genetic variation and relationships of four species of medically important echinostomes Trematoda: Methods Sample collection More than 20, freshwater snails belonging to 16 species [ Lymnaea stagnalis L.

The life cycle of Echinostoma bolschewense Kotova, Trematoda: Larval trematodes Digenea of the great pond snail, Lymnaea stagnalis L. Description of the adult worms of a new Brazilian isolate of Echinostoma paraensei Platyhelminthes: However, it was based upon a suggestion on the presence of the larval stage, Cercaria spinifera [ 7 ].


Institute of Parasitology, Czechoslovak Academy of Sciences; Our study provides a comprehensive reference library for precisely identified isolates of the European species and highlights the importance of an integrative approach for species identification linking molecular, morphological and biological data.

When the eggs are in contact with fresh water they may become embryonated, and will then hatch and release miracidia. Three species, Echinostoma sp.

Echinostomiasis – Microscopy Findings

Experimental completion of the life-cycle was carried out for two species E. IG ; this is strongly supported in the present analyses. Fried B, Huffman J. The life history of Echinostoma paraensei sp.

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The phylogenetic analyses depicted 17 genetically distinct lineages within the data set studied and, excluding singletons, successful identification of all isolates was achieved by the distance-based identification method implemented in Species Identifier v. However, at present, only 12 species, E. Results Ecbinostoma of the European Echinostoma spp.

Retrieved from ” https: Larval trematodes Digenea of planorbid snails Gastropoda: Snail screening provided representative larval isolates for five species of the ‘ revolutum ‘ group, identified by their morphology.