A5021267905- Vector-borne infectious diseases
- Viral Infections and Vectors
- Mosquito-borne diseases and control
- Insect and Pesticide Research
- Zoonotic diseases and public health
- Insect Pest Control Strategies
- Vector-Borne Animal Diseases
- COVID-19 epidemiological studies
- Virology and Viral Diseases
- Animal Disease Management and Epidemiology
- Interdisciplinary Research and Collaboration
- Data-Driven Disease Surveillance
- Yersinia bacterium, plague, ectoparasites research
- Public Health Policies and Education
- Viral Infections and Outbreaks Research
- Bartonella species infections research
Université de Montréal
2013-2025
Cegep de Saint Hyacinthe
2021-2025
Abstract Deer keds (Lipoptena cervi), an introduced European species, are expanding their geographic range in North America. We document first recorded presence Québec, Canada, map distribution, and highlight the detection of pathogens potential public health relevance. In Estrie region southern 47 deer (L. cervi) were collected from 14 (5.5%) 254 harvested white-tailed (Odocoileus virginianus). Borrelia spp. Anaplasma phagocytophilum detected body 1/44 8/44 L. cervi specimens, respectively....
Lyme disease (LD) is a threat to public health in southern regions of Canada. In response, we used One Health approach design an integrated intervention high-incidence LD community Québec aiming increase preventive behaviours the population and reduce density Borrelia burgdorferi-infected Ixodes scapularis ticks environment. The environmental component involved distributing fluralaner baits rodents around residential properties trails from 2019 2023. Effectiveness was measured by changes...
Abstract Background Lyme disease (LD) is an increasing public health threat in temperate zones of the northern hemisphere, yet relatively few methods exist for reducing LD risk endemic areas. Disrupting transmission cycle nature a promising avenue reduction. This experimental study evaluated efficacy fluralaner, recent oral acaricide with long duration effect dogs, killing Ixodes scapularis ticks Peromyscus maniculatus mice, known wildlife reservoir Borrelia burgdorferi nature. Methods We...
Abstract The development of interventions targeting reservoirs Borrelia burgdorferi sensu stricto with acaricide to reduce the density infected ticks faces numerous challenges imposed by ecological and operational limits. In this study, pharmacokinetics, efficacy toxicology fluralaner were investigated in Mus musculus Peromyscus leucopus mice, main reservoir B . North America. Fluralaner showed rapid distribution elimination, leading fast plasma concentration (C p ) depletion first hours...
Abstract Among approaches aimed at reducing Lyme disease risk in the environment, those targeting reservoirs of Borrelia burgdorferi Johnson are promising because they have potential to reduce both density questing Ixodes scapularis Say (Acari: Ixodidea) ticks and prevalence B. tick population. In this 4-yr field study, we treated a population wild small mammals with 2 densities fluralaner baits investigated effect treatment on 3 parameters endemic cycle burgdorferi: (i) infected Peromyscus...
Abstract The development of interventions that reduce Lyme disease incidence remains a challenge. Reservoir-targeted approaches aiming to tick densities or infection prevalence with Borrelia burgdorferi have emerged as promising ways the density infected ticks. Acaricides isoxazoline family offer high potential for reducing infestation ticks on small mammals they efficacy at killing feeding long period. Fluralaner baits were recently demonstrated effective, in laboratory, Ixodes scapularis...
SUMMARY Periodic outbreaks of West Nile virus (WNV), Eastern equine encephalitis (EEEV) and to a lesser extent, California serogroup viruses (CSGV), have been reported in parts Canada the last decade. This study was designed provide broad assessment arboviral activity Quebec, Canada, by conducting serological surveys for these arboviruses 196 horses, 1442 dogs 485 humans. Sera were screened competitive enzyme linked immunosorbent assay positive samples confirmed plaque reduction...
Abstract Jamestown Canyon and snowshoe hare viruses are two emerging human pathogens associated with cases of neuroinvasive disease in North America. This study aimed to identify environmental individual risk factors for seropositivity these arboviruses humans pet dogs from Québec, Canada, 2012–2014. In humans, areas moderate densities white-tailed deer ( Odocoileus virginianus ) were higher odds compared low (OR 2.50, P = 0.009) males than females 2.03, 0.016). Among reporting more 10...
Eastern equine encephalitis virus (EEEV) is a highly pathogenic arbovirus that infects humans, horses, and other animals. There has been significant increase in EEEV activity southeastern Canada since 2008. Few data are available regarding nonlethal infections mammals, consequently the distribution pathogenicity spectrum of these hosts poorly understood. This cross-sectional study focuses on evaluation viral southern Quebec's horses by seroprevalence estimation. A total 196 18 months older,...
The identification of specific environments sustaining emerging arbovirus amplification and transmission to humans is a key component public health intervention planning. This study aimed at identifying environmental factors associated with West Nile virus (WNV) infections in southern Quebec, Canada, by modelling jointly interpreting aggregated clinical data serological pet dogs. Environmental risk were estimated negative binomial regression based on dataset 191 human WNV cases reported the...
SUMMARY Eastern equine encephalitis (EEE) is a rare but severe emerging vector-borne disease affecting human and animal populations in the northeastern United States where it endemic. Key knowledge gaps remain about epidemiology of EEE virus (EEEV) areas its emergence has more recently been reported. In Canada, viral activity recorded mosquitoes horses throughout 2000s cases EEEV humans have not reported so far. This study was designed to provide an assessment possible exposure by modelling...
Tick-borne diseases are an emerging threat to public health throughout the temperate world, leading a growing field of research aimed at developing and testing intervention strategies for reducing human-tick encounters or prevalence infection in ticks. Various wide-spectrum chemical acaricides have proven effective controlling tick populations, but many these potential deleterious side-effects on environment. In addition acaricides, certain compounds such as diatomaceous earth been shown...
Abstract Integrated interventions coherent with the One Health approach are required to maximize effectiveness of tick-borne disease prevention. The objective this study was evaluate feasibility a community-based preventive intervention in municipality reporting high incidence Lyme (LD) province Quebec, Canada. integrated several activities promote adoption behaviours community (community component), reduction infected ticks environment (environmental component). To short-term effects...
Abstract Coxiella burnetii is a zoonotic agent responsible for human Q fever, potentially severe disease that can lead to persistent infection. This cross-sectional study aimed estimate the seroprevalence C. antibodies and its association with potential risk factors in population of five regions Québec, Canada. A serum bank comprising sera from 474 dog owners was screened by an enzyme-linked immunosorbent assay followed confirmation positive or equivocal indirect immunofluorescence assay....
Abstract Objective In 2021, a first outbreak of anaplasmosis occurred in animals and humans southern Québec, with 64% confirmed human cases located Bromont municipality. Ixodes scapularis ticks Peromyscus mouse ear biopsies collected from 2019 to 2021 were analyzed for Anaplasma phagocytophilum (Ap) the objective determining whether an early environmental signal could have been detected before outbreak. Methods Samples concurrent study aiming reduce Lyme disease risk. Between up 14...