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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Echinostomatidae re-defined, with comments on their nominal species. However, this species is still referred to as E. The parasites are spread when humans or animals eat infected raw or undercooked food, such as bivalve molluscs or fish [2].

The cirrus sac was well developed, containing a saccular seminal vesicle and an unarmed cirrus. More than 20, freshwater snails belonging to 16 species [ Lymnaea stagnalis L. A new method of DNA extraction from the ethanol-fixed parasitic worms. Non-metric multidimensional scaling NMDS ordination performed with Primer v6 software [ 43 ] was used to visualise the raw pairwise distances.

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Non-metric multidimensional scaling ordination plot derived from the raw pairwise distances calculated for the nad 1 dataset.

Intermediate hosts of Echinostoma spp.

Kluwer Academic Publishers; The size of metacercariae may vary depending on the amount of pressure placed on the cover slip.

Echinostoma revolutumEchinostoma juriniechinostome, metacercaria, Echinowtoma snail, Vietnam.


Fried B, Graczyk TK. Support Center Support Center.

The status of this isolate was discussed by Kostadinova et al. The large-scale screening revealed infections with five Echinostoma spp. These authors distinguished the five species based mainly on a single morphological feature of their larval stages the number of outlets of the paraoesophageal gland-cells in the cercariathe specificity towards the snail first intermediate host at the familial leveltheir ability to infect avian or mammalian hosts or both and their geographical range on a global scale continents see Kostadinova et al.

IG ; this is strongly supported in the present analyses. Ann Parasitol Hum Comp. Foodborne intestinal flukes in Southeast Asia.

The only supported sister-group relationship was between E. Egg of Echinostoma sp. No intraspecific variation was detected for species with multiple sequences, i.

Echinostooma several ultrastructural studies were performed on what was thought to be E. The European cercarial and adult isolates of E. For example, the species now known as Echinostoma caproniecjinostoma previously known by a variety of names including E. The life cycle of Echinostoma bolschewense Kotova, Trematoda: Species-level identification cannot be done based on egg morphology and adults are needed for a definitive diagnosis. Partial domains D1—D3; c.

Snail species such as Lymnaea spp. New cryptic species of the ‘ revolutum ‘ group of Echinostoma Digenea: The incorporation of a large set of sequences for larval and adult E. To the best of our knowledge, this is the only species of Echinostoma developing in prosobranch snails; our study elucidated another first intermediate host, Viviparus acerosus. Unfortunately, the findings echinostom the study of Kostadinova et al.


Our results are congruent with the phylogenies obtained by Detwiler et al. The life cycle of Echinostoma friedi n. Echinostoma infect the gastrointestinal tract of humans, and can cause a disease known as echinostomiasis. Because the eggs echinoxtoma large, careful measurements must be taken to avoid confusion with the eggs of Fasciola or Fasciolopsis. Abstract We detected metacercariae of Echinostoma revolutum in Filopaludina sp.

The systematics of the echinosotmes. echinoshoma

Echinostoma – Wikipedia

No other detailed information about this echinostome in Vietnam is available. Results Infections in natural host populations The large-scale echinoetoma of natural snail populations in Europe revealed infections with five Echinostoma spp.

Echinostomatidae and related genera re-assessed via DNA and morphological analyses. Bayesian inference phylogram reconstructed using partial 28S rDNA sequences for nine Echinostoma spp. The prepharynx was very short, and the pharynx was well developed.

The second intermediate host was Filopaludina snails, a viviparid molluscan species. A single adult individual has both male and female reproductive organs, and is capable of self-fertilization.