Multiple range study of factors controlling the transmission of an emerging zoonotic agent, Echinococcus multilocularis
Alveolar echinococcosis, which can be lethal if diagnosed too late, is an emerging disease. This zoonosis is caused by the cestode Echinococcus multilocularis, which sylvatic cycle implies the red fox Vulpes vulpes, as definitive host, and the common and water voles Microtus arvalis and Arvicola ter...
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Format: | Doctoral or Postdoctoral Thesis |
Language: | French |
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2006
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Online Access: | https://theses.hal.science/tel-00340022 https://theses.hal.science/tel-00340022/document https://theses.hal.science/tel-00340022/file/Guislain2006-PhD_final.pdf |
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ftunifranchecom:oai:HAL:tel-00340022v1 2024-02-11T10:05:50+01:00 Multiple range study of factors controlling the transmission of an emerging zoonotic agent, Echinococcus multilocularis Étude à différentes fenêtres de perception, des facteurs impliqués dans la transmission d'Echinococcus multilocularis, parasite responsable d'une maladie émergente : l'échinococcose alvéolaire Guislain, Marie-Hélène Laboratoire Chrono-environnement (UMR 6249) (LCE) Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC) Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC) Université de Franche-Comté Giraudoux Patrick(Patrick.Giraudoux@univ-fcomte.fr) 2C2A – Centre de Recherche et de formation en éco-éthologie 2006-12-14 https://theses.hal.science/tel-00340022 https://theses.hal.science/tel-00340022/document https://theses.hal.science/tel-00340022/file/Guislain2006-PhD_final.pdf fr fre HAL CCSD tel-00340022 https://theses.hal.science/tel-00340022 https://theses.hal.science/tel-00340022/document https://theses.hal.science/tel-00340022/file/Guislain2006-PhD_final.pdf info:eu-repo/semantics/OpenAccess https://theses.hal.science/tel-00340022 Ecologie, Environnement. Université de Franche-Comté, 2006. Français. ⟨NNT : ⟩ faeces parasitic transmission Echinococcus multilocularis Vulpes vulpes Microtus Arvicola terrestris fèces Ardennes micro-habitat transmission parasitaire [SDV.EE]Life Sciences [q-bio]/Ecology environment info:eu-repo/semantics/doctoralThesis Theses 2006 ftunifranchecom 2024-01-23T23:32:41Z Alveolar echinococcosis, which can be lethal if diagnosed too late, is an emerging disease. This zoonosis is caused by the cestode Echinococcus multilocularis, which sylvatic cycle implies the red fox Vulpes vulpes, as definitive host, and the common and water voles Microtus arvalis and Arvicola terrestris as intermediate hosts. Human can be contaminated by ingestion of parasite eggs laid on vegetables or via direct contact with definitive hosts. A few data are currently available on ecological factors modulating parasitic transmission between their different hosts on regional and local perception ranges. We conducted a study on E. multilocularis cycle pattern on different perception ranges, in the french departement of the Ardennes, considered as a new endemic area. The prevalence of E. multilocularis in fox population reached 53%, which might be explained by a relatively high fox population density and an important consumption of Microtus sp. by the red fox. On a regional range (900 km²) and with a local grain (1 km²), the prevalence in red fox as well as individual worm burden distribution was very heterogeneous, with a strong gradient increasing from north to south. The majority of the parasitic biomass was harboured by a few red foxes within some square kilometres. Landscape characteristics and intermediate host densities seemed to influence E. multilocularis prevalence in red foxes. Finally, on a local range (90 km²) and with a micro-local grain (1000 m²), parasitic transmission seemed to occur more likely in edges, where red fox faeces and rodent densities were high. L'échinococcose alvéolaire, qui peut être fatale si le diagnostic est tardif, est une zoonose émergente. Elle est due à un cestode, Echinococcus multilocularis, dont le cycle fait intervenir le renard roux, Vulpes vulpes, comme hôte définitif et les campagnols prairiaux (Microtus arvalis et Arvicola terrestris) comme hôtes intermédiaires. Relativement peu de données sont actuellement disponibles sur les facteurs écologiques qui peuvent ... Doctoral or Postdoctoral Thesis Microtus arvalis Université de Franche-Comté (UFC): HAL Renard ENVELOPE(-63.767,-63.767,-65.017,-65.017) |
institution |
Open Polar |
collection |
Université de Franche-Comté (UFC): HAL |
op_collection_id |
ftunifranchecom |
language |
French |
topic |
faeces parasitic transmission Echinococcus multilocularis Vulpes vulpes Microtus Arvicola terrestris fèces Ardennes micro-habitat transmission parasitaire [SDV.EE]Life Sciences [q-bio]/Ecology environment |
spellingShingle |
faeces parasitic transmission Echinococcus multilocularis Vulpes vulpes Microtus Arvicola terrestris fèces Ardennes micro-habitat transmission parasitaire [SDV.EE]Life Sciences [q-bio]/Ecology environment Guislain, Marie-Hélène Multiple range study of factors controlling the transmission of an emerging zoonotic agent, Echinococcus multilocularis |
topic_facet |
faeces parasitic transmission Echinococcus multilocularis Vulpes vulpes Microtus Arvicola terrestris fèces Ardennes micro-habitat transmission parasitaire [SDV.EE]Life Sciences [q-bio]/Ecology environment |
description |
Alveolar echinococcosis, which can be lethal if diagnosed too late, is an emerging disease. This zoonosis is caused by the cestode Echinococcus multilocularis, which sylvatic cycle implies the red fox Vulpes vulpes, as definitive host, and the common and water voles Microtus arvalis and Arvicola terrestris as intermediate hosts. Human can be contaminated by ingestion of parasite eggs laid on vegetables or via direct contact with definitive hosts. A few data are currently available on ecological factors modulating parasitic transmission between their different hosts on regional and local perception ranges. We conducted a study on E. multilocularis cycle pattern on different perception ranges, in the french departement of the Ardennes, considered as a new endemic area. The prevalence of E. multilocularis in fox population reached 53%, which might be explained by a relatively high fox population density and an important consumption of Microtus sp. by the red fox. On a regional range (900 km²) and with a local grain (1 km²), the prevalence in red fox as well as individual worm burden distribution was very heterogeneous, with a strong gradient increasing from north to south. The majority of the parasitic biomass was harboured by a few red foxes within some square kilometres. Landscape characteristics and intermediate host densities seemed to influence E. multilocularis prevalence in red foxes. Finally, on a local range (90 km²) and with a micro-local grain (1000 m²), parasitic transmission seemed to occur more likely in edges, where red fox faeces and rodent densities were high. L'échinococcose alvéolaire, qui peut être fatale si le diagnostic est tardif, est une zoonose émergente. Elle est due à un cestode, Echinococcus multilocularis, dont le cycle fait intervenir le renard roux, Vulpes vulpes, comme hôte définitif et les campagnols prairiaux (Microtus arvalis et Arvicola terrestris) comme hôtes intermédiaires. Relativement peu de données sont actuellement disponibles sur les facteurs écologiques qui peuvent ... |
author2 |
Laboratoire Chrono-environnement (UMR 6249) (LCE) Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC) Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC) Université de Franche-Comté Giraudoux Patrick(Patrick.Giraudoux@univ-fcomte.fr) 2C2A – Centre de Recherche et de formation en éco-éthologie |
format |
Doctoral or Postdoctoral Thesis |
author |
Guislain, Marie-Hélène |
author_facet |
Guislain, Marie-Hélène |
author_sort |
Guislain, Marie-Hélène |
title |
Multiple range study of factors controlling the transmission of an emerging zoonotic agent, Echinococcus multilocularis |
title_short |
Multiple range study of factors controlling the transmission of an emerging zoonotic agent, Echinococcus multilocularis |
title_full |
Multiple range study of factors controlling the transmission of an emerging zoonotic agent, Echinococcus multilocularis |
title_fullStr |
Multiple range study of factors controlling the transmission of an emerging zoonotic agent, Echinococcus multilocularis |
title_full_unstemmed |
Multiple range study of factors controlling the transmission of an emerging zoonotic agent, Echinococcus multilocularis |
title_sort |
multiple range study of factors controlling the transmission of an emerging zoonotic agent, echinococcus multilocularis |
publisher |
HAL CCSD |
publishDate |
2006 |
url |
https://theses.hal.science/tel-00340022 https://theses.hal.science/tel-00340022/document https://theses.hal.science/tel-00340022/file/Guislain2006-PhD_final.pdf |
long_lat |
ENVELOPE(-63.767,-63.767,-65.017,-65.017) |
geographic |
Renard |
geographic_facet |
Renard |
genre |
Microtus arvalis |
genre_facet |
Microtus arvalis |
op_source |
https://theses.hal.science/tel-00340022 Ecologie, Environnement. Université de Franche-Comté, 2006. Français. ⟨NNT : ⟩ |
op_relation |
tel-00340022 https://theses.hal.science/tel-00340022 https://theses.hal.science/tel-00340022/document https://theses.hal.science/tel-00340022/file/Guislain2006-PhD_final.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1790603038973493248 |