Search results for "multilocularis"
showing 10 items of 14 documents
Helminth parasites of the wolfCanis lupusfrom Latvia
2009
AbstractThirty-four wolves were collected between 2003 and 2008 from throughout Latvia and examined for helminths. A total of 17 helminth species were recorded: the trematodeAlaria alata(85.3%); the cestodesDiphyllobothrium latum(2.9%),Echinococcus granulosus(2.9%),Echinococcus multilocularis(5.9%),Mesocestoides lineatus(5.9%),Taenia crassiceps(8.8%),Taenia hydatigena(41.2%),Taenia (ovis) krabbei(8.8%),Taenia multiceps(47.1%),Taenia pisiformis(20.6%),Taenia polyacantha(11.8%),Taeniaspp. (8.8%); and the nematodesAncylostoma caninum(2.9%),Crenosoma vulpis(9.1%),Eucoleus aerophilus(36.4%),Pearsonema plica(41.4%),Trichinellaspp. (69.7%),Toxocara canis(5.8%), andUncinaria stenocephala(41.2%).Ala…
Extracellular non-coding RNA signatures of the metacestode stage of Echinococcus multilocularis
2020
Extracellular RNAs (ex-RNAs) are secreted by cells through different means that may involve association with proteins, lipoproteins or extracellular vesicles (EV). In the context of parasitism, ex-RNAs represent new and exciting communication intermediaries with promising potential as novel biomarkers. In the last years, it was shown that helminth parasites secrete ex-RNAs, however, most work mainly focused on RNA secretion mediated by EV. Ex-RNA study is of special interest in those helminth infections that still lack biomarkers for early and/or follow-up diagnosis, such as echinococcosis, a neglected zoonotic disease caused by cestodes of the genus Echinococcus. In this work, we have char…
Les nuées dynamiques floues appliquées au développement dune typologie paysagère
2007
International audience; Un programme d'épidémiosurveillance actuellement en cours vise à évaluer la présence du parasite Echinococcus multilocularis en France. Contrairement aux hypothèses écologiques initiales, le parasite et ses hôtes ne semblent pas privilégier certains modes d'occupation du sol plus que d'autres. L'objectif de ce travail consiste à identifier dans un premier temps les contextes paysagers au sein desquels la présence parasitaire est confirmée puis, dans un second temps, à mettre en évidence un gradient dans les prévalences spécifiques à chacun de ces contextes. Les nuées dynamiques floues ont permis d'optimiser et de critiquer la typologie paysagère établie. La hiérarchi…
Les relations paysage-hôtes dans les processus épidémiologiques du parasite Echinococcus multilocularis
2005
National audience
Fast-Growing Alveolar Echinococcosis Following Lung Transplantation
2020
International audience; Alveolar echinococcosis is a rare but life-threatening infection caused by the parasiteEchinococcus multilocularis. Its natural history is characterized by a slow parasitic growth over several years. Increased incidence and shorter development delay have been reported in immune-compromised patients. We report the reactivation of aborted lesions within 12 months of lung transplantation leading to a fast-growing aggressive hepatic lesion. Timely identification of alveolar echninococcosis allowed prompt albendazole treatment and radical surgery leading to a favorable outcome 42 months after transplantation. However, close clinical, serological and radiological monitorin…
Functional response of species to multiscale landscape structure in a vector-borne disease
2007
International audience; The functional response of species to landscape is a recurring issue in landscape ecology. The scale levels favourable to the parasite responsible for a vector-borne disease, alveolar echinococcosis, have been explored in the Doubs department in eastern France. The method consists in maximizing landscape composition's heterogeneity in the environment of infected and non-infected georeferenced samples at various scales. The aim is to identify scale levels at which the positive samples' landscapes are the most specific and differ the most from the landscape in the environment of all samples. Three scales were identified and the distance to the positive samples' composi…
Echinococcus multilocularis in urban and rural foxes of the Czech Republic
2004
International audience
Le choix de descripteurs paysagers en tant qu'indicateurs d'un risque épidémiologique
2005
National audience; Echinococcus multilocularis (Em) est un parasite responsable chez l'homme d'une maladie grave : l'échinococcose alvéolaire. La contamination humaine peut se produire par ingestion accidentelle d'œufs du parasite. Un programme européen d'épidémiosurveillance, EchinoRisk, est actuellement en cours. En France, ce programme, mené conjointement par l'ERZ (Entente interdépartementale de lutte contre la rage et autres zoonoses) et l'AFSSA (Agence française de sécurité sanitaire des aliments), a permis jusqu'à présent de collecter 5 820 échantillons localisés de fèces de renards. À ce jour, 2 305 échantillons ont été analysés parmi lesquels 62 ont révélé la présence du parasite. …
Alveolar echinococcosis: characteristics of a possible emergence and new perspectives in epidemiosurveillance
2001
International audience; The aim of this review is to discuss the situation of alveolar echinococcosis in France, in the light of the current knowledge on its transmission patterns in the world, especially Europe. An important risk of higher contamination of the rural environment may be suspected from newly reported cases of infected foxes or voles in several countries where the disease was not found before. Furthermore, the increase of prevalence rate in foxes in Bade-Würtemberg (Germany) and Franche-Comté (France), traditionally endemic, is also in support of this new trend. Urban foxes and the spreading of infected foxes to cities may also be the cause of the extension to urban and suburb…
Representing Echinococcus multilocularis gradients in space and time: fox data, models, and scale dependence
2004
International audience