They were compatible to Echinostoma revolutum or Echinostoma jurini, with only minor differences. As the adults were recovered from both. Echinostoma ‘revolutum’ (Digenea: Echinostomatidae) species complex revisited: species delimitation based on novel molecular and. To determine the prevalence of helminthic infections in Pursat Province, Cambodia, we tested fecal specimens from children, 10–14 years of age, in June.
|Published (Last):||14 November 2010|
|PDF File Size:||1.97 Mb|
|ePub File Size:||13.11 Mb|
|Price:||Free* [*Free Regsitration Required]|
Report of cases of Echinostoma malayanum and Hypoderaeum conoideum in Thailand. Table 2 Information eechinostoma freshwater snails examined in Chiang Mai province and overall prevalence and intensity of E. In addition, in C. However, detailed examination of cercarial morphology revealed specific differences with respect to a combination of characters, i. The most heavily infected species of snails were F.
Support Center Support Center.
ADW: Echinostoma revolutum: INFORMATION
The first intermediate host for our flukes may be the same or different species of these snails, although this was echinlstoma confirmed in this study. At time of initial infection, metacercariae average micrometers long and 0.
Although most of the isolates of E. Last Modification Friday, Nov 13, at Contributing Authors Cynthia D.
J Med Appl Malacol. The systematics of the echinostomes Digenea: Eleven haplotypes were identified from isolates of Echinostoma n. Based on molecular data, E. Echinostoma revolutum Froelich, Looss Rediae actively consume and digest primary intermediate host tissues while moving throughout the infected host Sorensen and Minchella, Davidson and The Florida State University.
Sequences were also generated from adult isolates of E. Support Center Support Center.
Echknostoma on Facebook Tweet Share Compartir. In addition to tree-based approaches to species delineation we used the distance-based identification method implemented in the function Species Identifier v1 within the program TAXONDNA [ 44 ]. Spatial and temporal genetic variation of Echinostoma revolutum Trematoda: Eggs of Echinostoma revolutum are found in fresh water habitats Kanev, where waterfowl occur.
Echinostomatidae revealed by molecular and morphological data. Secondly, although the nad 1 dataset was substantially expanded, the same lineages of E. Echinostoma echinatum Zeder, sensu Kanev Digenea: Several genera of snails may serve as the first intermediate host.
Of these, our specimens were more compatible to E. Echinostoma revolutum parasitism of Lymnaea elodes snails. Nearctic living in the Nearctic biogeographic province, the northern part of the New World.
Intermediate hosts of Echinostoma spp. There is no parental investment beyond the limited provisioning of revolutkm. The life-cycle of Echinostoma friedi n.
However, with the exception of the blood fluke Schistosoma mekongiinfection with trematodes or cestodes has seldom been reported 8. Recent molecular studies indicate the existence of more species than previously considered valid, thus stressing the need for wider taxon sampling from natural host populations.
Failure to detect the origin of this isolate has resulted in a wrong conclusion, i. Worldwide, but human echinnostoma are seen most-frequently in southeast Asia and in areas where ecinostoma or raw freshwater snails, clams and fish are eaten. The first reported human infection was in Taiwan in 2.
Echinostoma revolutum Infection in Children, Pursat Province, Cambodia
The status of echnostoma isolate was discussed by Kostadinova et al. The latter, even if unidentified at the time of DNA sequence publication, are of primary importance for accelerating further integrative taxonomy studies. Tegument of anterior body armed with numerous small spines which extended to the posterior end of ventral sucker.
Examination of feces and anthelmintic treatment were officially approved by the Ministry of Health, Cambodia, under the agreement of the Korea-Cambodia International Collaboration on Intestinal Parasite Control for Schoolchildren in Cambodia.
Veterinary Parasitology Table 1 Summary data for the isolates of Echinostoma spp. C Head collar of an adult specimen armed with 37 collar spines arranged in a single row, including 5 end-group spines on each side. Summary data for the isolates of Echinostoma spp.