Gwenaël Vourc’h

ORCID: 0000-0003-3453-6682
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About
Contact & Profiles
Research Areas
  • Vector-borne infectious diseases
  • Viral Infections and Vectors
  • Vector-Borne Animal Diseases
  • Zoonotic diseases and public health
  • Mosquito-borne diseases and control
  • Yersinia bacterium, plague, ectoparasites research
  • Insect and Pesticide Research
  • Animal Disease Management and Epidemiology
  • Animal Ecology and Behavior Studies
  • Agriculture and Rural Development Research
  • Insect and Arachnid Ecology and Behavior
  • Rabies epidemiology and control
  • Plant and animal studies
  • Insect symbiosis and bacterial influences
  • Data-Driven Disease Surveillance
  • Bee Products Chemical Analysis
  • Healthcare Systems and Practices
  • Plant Parasitism and Resistance
  • Ecology and Vegetation Dynamics Studies
  • Forest Insect Ecology and Management
  • Identification and Quantification in Food
  • Vibrio bacteria research studies
  • Bartonella species infections research
  • Fire effects on ecosystems
  • Obsessive-Compulsive Spectrum Disorders

Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2007-2025

VetAgro Sup
2017-2025

Université Clermont Auvergne
2020-2025

Université Claude Bernard Lyon 1
2022-2023

Épidémiologie des maladies Animales et zoonotiques
2017-2022

Institut National de la Recherche Agronomique
2008-2019

Centre de Recherche en Nutrition Humaine d'Auvergne
2015

Département Génétique Animale
2007-2014

Département Santé Animale
2006

Centre d'Écologie Fonctionnelle et Évolutive
2001-2003

Despite improvements in prevention, diagnosis and treatment, Lyme borreliosis (LB) is still the most common arthropod-borne disease temperate regions of northern hemisphere, with risk infection associated occupation (e.g. forestry work) certain outdoor recreational activities mushroom collecting). In Europe, LB caused by one or more pathogenic European genospecies spirochaete Borrelia burgdorferi sensu lato, mainly transmitted tick Ixodes ricinus. Recent surveys show that overall prevalence...

10.2807/ese.16.27.19906-en article EN cc-by Eurosurveillance 2011-07-07

The geographic pattern of human risk for infection with Borrelia burgdorferi sensu stricto, the tick-borne pathogen that causes Lyme disease, was mapped eastern United States. map is based on standardized field sampling in 304 sites density Ixodes scapularis host-seeking nymphs infected B. burgdorferi, which closely associated risk. Risk factors presence and were used to model a continuous 8 km×8 km resolution predictive surface risk, including confidence intervals each pixel. Discontinuous...

10.4269/ajtmh.2012.11-0395 article EN American Journal of Tropical Medicine and Hygiene 2012-02-01

Introduction Ticks are the most common arthropod vectors of both human and animal diseases in Europe, Ixodes ricinus tick species is able to transmit a large number bacteria, viruses parasites. may also be co-infected with several pathogens, subsequent high likelihood co-transmission humans or animals. However few data exist regarding co-infection prevalences, these studies only focus on certain well-known pathogens. In addition ticks carry symbionts that play important roles biology, could...

10.1371/journal.pntd.0004539 article EN cc-by PLoS neglected tropical diseases 2016-03-17

Chikungunya virus (CHIKV) has long been considered to be transmitted humans by the human-biting mosquito Aedes aegypti, especially in Africa. However, recent outbreak of CHIKV involved another vector, albopictus, and serological data literature suggest that several species domestic or human-related vertebrates can contaminated this virus. role Ae. albopictus mosquitoes as potential enzootic vectors for not yet evaluated. Here we investigate feeding resting behaviors an area where a epidemic...

10.1089/vbz.2009.0026 article EN Vector-Borne and Zoonotic Diseases 2009-07-09

ABSTRACT Aim Ixodes scapularis is the most important vector of human tick‐borne pathogens in United States, which include agents Lyme disease, babesiosis and anaplasmosis, among others. The density host‐seeking I. nymphs an component risk for acquiring Borrelia burgdorferi , aetiological agent disease. In this study we used climate field sampling data to generate a predictive map that can be by public, physicians public health agencies assist with diagnosis reporting better target disease...

10.1111/j.1466-8238.2010.00526.x article EN Global Ecology and Biogeography 2010-04-07

The blacklegged tick, Ixodes scapularis, is of significant public health importance as a vector Borrelia burgdorferi, the agent Lyme borreliosis. timing seasonal activity each immature I. scapularis life stage relative to next critical for maintenance B. burgdorferi because larvae must feed after an infected nymph efficiently acquire infection from reservoir hosts. Recent studies have shown that some strains do not persist in primary host more than few weeks, thereby shortening window...

10.1128/aem.02633-08 article EN Applied and Environmental Microbiology 2009-02-28

ABSTRACT Ecological changes are recognized as an important driver behind the emergence of infectious diseases. The prevalence infection in ticks depends upon ecological factors that rarely taken into account simultaneously. Our objective was to investigate influences forest fragmentation, vegetation, adult tick hosts, and habitat on three tick-borne bacteria, Borrelia burgdorferi sensu lato, Anaplasma phagocytophilum , Rickettsia sp. spotted fever group, questing Ixodes ricinus ticks, taking...

10.1128/aem.00610-10 article EN Applied and Environmental Microbiology 2010-05-08

The variation of the composition in species host communities can modify risk disease transmission. In particular, introduction a new increase health threats by adding reservoir and/or amplifying circulation either exotic or native pathogens. Lyme borreliosis is multi-host vector-borne caused bacteria belonging to Borrelia burgdorferi sensu lato complex. It transmitted bite hard ticks, especially Ixodes ricinus Europe. Previous studies showed that Siberian chipmunk, Tamias sibiricus barberi,...

10.1371/journal.pone.0055377 article EN cc-by PLoS ONE 2013-01-31

Ixodes ricinus ticks (Acari: Ixodidae) are the most important vector for Lyme borreliosis in Europe. As climate change might affect their distributions and activities, this study aimed to determine effects of environmental factors, i.e., meteorological, bioclimatic, habitat characteristics on host-seeking (questing) activity I. nymphs, an stage disease transmissions, across diverse climatic types France over 8 years. Questing was observed using a repeated removal sampling with cloth-dragging...

10.1038/s41598-022-11479-z article EN cc-by Scientific Reports 2022-05-12

Human leptospirosis is a zoonotic and potentially fatal disease that has increasingly been reported in both developing developed countries, including France. However, our understanding of the basic aspects epidemiology this disease, source Leptospira serogroup Australis infections humans domestic animals, remains incomplete. We investigated genetic diversity 28 species wildlife other than rats using variable number tandem repeat (VNTR) multispacer sequence typing (MST). The DNA pathogenic...

10.1371/journal.pone.0162549 article EN cc-by PLoS ONE 2016-09-28

Brown rats are one of the most widespread urban species worldwide. Despite nuisances they induce and their potential role as a zoonotic reservoir, knowledge on rat populations remains scarce. The main purpose this study was to characterize an brown population from Chanteraines park (Hauts-de-Seine, France), with regards haematology, genetics, immunogenic diversity, resistance anticoagulant rodenticides, community parasites. Haematological parameters were measured. Population genetics...

10.1371/journal.pone.0184015 article EN cc-by PLoS ONE 2017-09-08

Current and likely future changes in the geographic distribution of ticks belonging to genus Hyalomma are concern, as these believed be vectors many pathogens responsible for human animal diseases. However, we have observed that there no vector competence experiments, level evidence provided by scientific literature is often not sufficient validate transmission a specific pathogen species. We therefore carried out bibliographical study collate validation parasitic, viral, or bacterial spp....

10.3390/pathogens12040513 article EN cc-by Pathogens 2023-03-25

Our objective was to identify local animal reservoirs of leptospirosis explain the unusual features Leptospira strains recently described among patients on island Mayotte. By means a microscopic agglutination test using clinical isolates, we found that 11.2% black rats were seropositive , whereas 10.2% flying foxes, 2% lemurs, 93.1% domestic dogs, and 87.5% stray dogs seropositive. As observed in humans, Mini main serogroup circulating animals, Icterohaemorrhagiae absent. Using quantitative...

10.4269/ajtmh.2012.12-0102 article EN American Journal of Tropical Medicine and Hygiene 2012-07-02

In Europe, Ixodes ticks are major vectors for both human and livestock pathogens, with the most widespread species, ricinus , being responsible transmission of pathogenic agent Lyme disease, Borrelia burgdorferi sensu lato. The disease is endemic in France, where number new cases per year was estimated at 39,052 2023. I. widely distributed particularly Auvergne-Rhône-Alpes, its abundance not always well known. Often, estimation questing tick based on a single observation from several sites;...

10.3897/bdj.12.e142266 article EN cc-by Biodiversity Data Journal 2025-04-02
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