A5103428077- Vector-borne infectious diseases
- Viral Infections and Vectors
- Mosquito-borne diseases and control
- Vector-Borne Animal Diseases
- Zoonotic diseases and public health
- Insect and Pesticide Research
- Yersinia bacterium, plague, ectoparasites research
- Behavioral Health and Interventions
- Social and Intergroup Psychology
- Education, sociology, and vocational training
- French Urban and Social Studies
- Virology and Viral Diseases
- Insect symbiosis and bacterial influences
- Insect Pest Control Strategies
- Wildlife Ecology and Conservation
- Obsessive-Compulsive Spectrum Disorders
- Caribbean and African Literature and Culture
- Eating Disorders and Behaviors
- Environmental Education and Sustainability
- Climate Change Communication and Perception
- Rabies epidemiology and control
- Contemporary art, education, critique
- Canadian Identity and History
- Bartonella species infections research
- Social Sciences and Governance
Université de Montréal
2010-2025
Public Health Agency of Canada
2016-2025
Cegep de Saint Hyacinthe
2024-2025
Children's Hospital of Eastern Ontario
2024
Université du Québec à Chicoutimi
2018
Ministry of Labour, Employment and Social Solidarity
2005
Northward expansion of the tick Ixodes scapularis is driving Lyme disease (LD) emergence in Canada. Information on mechanisms involved needed to enhance surveillance and identify where LD risk emerging.We used passive active phylogeographic analysis Borrelia burgdorferi investigate Quebec.In surveillance, we collected ticks from environment captured rodents. B. transmission was detected by serological rodents polymerase chain reaction assays ticks. Spatiotemporal trends data assisted...
Climate change is driving emergence and establishment of Ixodes scapularis, the main vector Lyme disease in Québec, Canada. As for black-legged tick, I. scapularis Say, global warming may also favor northward expansion other species medically important ticks. The aims this study were to determine (1) current diversity abundance ticks public health significance than (2) sex age human population bitten by these (3), seasonal geographic pattern their occurrence. From 2007 2015, twelve tick...
Tick-borne diseases, and especially Lyme Disease (LD), are on the rise in Canada have been met with increasing public health concern. To face these emerging threats, education prevention of tick bites remains mainstay intervention. The objective this study was to assess adoption preventive behaviors toward LD investigate association between behavioral risk factors reported exposure a Canadian, high incidence region (Estrie region, Quebec, Canada).A cross-sectional conducted 2018 which used...
Ixodes scapularis ticks are expanding their range in parts of northeastern North America, bringing with them pathogens public health concern. While rodents like the white-footed mouse, Peromyscus leucopus , considered primary reservoir many emerging tick-borne pathogens, contribution birds, as alternative hosts and reservoirs, to local transmission cycles has not yet been firmly established. From 2016 2018, we collected host-seeking examined rodent bird for at 48 sites a park where...
The geographic range of the blacklegged tick, Ixodes scapularis, is expanding northward from United States into southern Canada, and studies suggest that lone star Amblyomma americanum, will follow suit. These tick species are vectors for many zoonotic pathogens, their expansion presents a serious threat to public health. Climate change (particularly increasing temperature) has been identified as an important driver permitting ticks, but impacts host movement, which essential dispersal new...
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 It has been suggested that increasing biodiversity, specifically host diversity, reduces pathogen and parasite transmission amongst wildlife (causing a “dilution effect”), whereby efficient reservoir hosts, (e.g. Peromyscus spp. mice for the agent of Lyme disease Borrelia burgdorferi ) is reduced by presence other less species. If so, then biodiversity should inhibit invasion. Methods We investigated this hypothesis studying invasion B. its tick vector Ixodes scapularis...
Lyme disease, the most commonly reported vector-borne disease in North America, is caused by spirochete Borrelia burgdorferi sensu stricto, which transmitted Ixodes scapularis eastern Canada and pacificus western Canada. Recently, northward range expansion of I. ticks, south-eastern Canada, has resulted a dramatic increase incidence human disease. Detecting emerging areas risk allows public health to target prevention efforts. We analysed passive tick surveillance data from Ontario Manitoba...
Lyme disease is an emerging vector-borne zoonotic of increasing public health importance in Canada. As part its mandate, the Canadian Disease Research Network (CLyDRN) launched a pan-Canadian sentinel surveillance initiative, Sentinel (CaLSeN), 2019.To create standardized, national network providing real-time portrait evolving environmental risk each province.A multicriteria decision analysis (MCDA) approach was used selection regions. Within region, systematic drag sampling protocol...
The incidence of Lyme disease is increasing in Québec and closely linked to the distribution Ixodes scapularis ticks. A time-to-establishment model developed 2012 by Leighton colleagues predicted year tick population establishment for each municipality eastern Canada. To validate if this correctly Québec, was compared field data from active surveillance (2010–2018) using two criteria: i) detection at least one ii) three questing stages tick. speed increase exposed human 2100 were with model....
Background: The risk of contracting Lyme disease (LD) can vary spatially because spatial heterogeneity in factors such as social-behavior and exposure to ecological factors. Integrating these inform decision-making should therefore increase the effectiveness mitigation interventions. Objectives: objective this study was develop an integrated social-behavioral risk-mapping approach identify priority areas for LD Methods: conducted Montérégie region Southern Quebec, Canada, where is a newly...
Pathogen life history theory assumes a positive relationship between pathogen load in host tissues and transmission. Empirical evidence for this is surprisingly rare due to the difficulty of measuring transmission many pathogens. The comparative method, where common experimentally infected with set strains, powerful approach investigating relationships validity such experimental estimates strain-specific greatly enhanced if they can predict population strain structure nature. Borrelia...
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...
Identifying ecological drivers of tick-borne pathogen spread has great value for disease management. However, theoretical investigations into the consequences host movement behaviour on dynamics in heterogeneous landscapes remain limited because spatially explicit epidemiological models that incorporate more realistic mechanisms governing are rare. We built a mechanistic model to investigate how interplay between multiple affects risk across landscapes. used generate simulations tick...
Lyme disease (LD) risk is emerging rapidly in Canada due to range expansion of its tick vectors, accelerated by climate change. The contracting LD varies geographically variability ecological characteristics that determine the hazard (the densities infected host-seeking ticks) and vulnerability human population determined their knowledge adoption preventive behaviors. Risk maps are commonly used support public health decision-making on disease, but ability adopt behaviors rarely taken into...
Infectious diseases are emerging across temperate regions of the world, and, for some, links have been made between landscapes and emergence dynamics. For tick-borne diseases, public parks may be important exposure sites people living in urbanized areas North America Europe. In most cases, we know more about ecological processes that determine hazard posed by ticks as disease vectors than do how human population varies urban natural parks.
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...
Climate change is facilitating the geographic range expansion of populations tick vector Lyme disease Ixodes scapularis in Canada. Here, we characterize and map spatio-temporal variability environments suitable for I. using Earth observation (EO) data. A simple algorithm occurrence (cumulative degree-days forest: CSDF) was developed by combining cumulative annual surface above 0 °C forest cover. To environmental risk (risk scapularis: RIS) central eastern Canada from 2000 to 2015, CSDF...
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...
Rabies occurs throughout the Arctic, representing an ongoing public health concern for residents of northern communities. The Arctic fox (Vulpes lagopus) is main reservoir rabies virus variant, yet little known about epidemiology rabies, such as ecological mechanisms driving where and when epizootics in populations occur. In this study, we provide first portrait spatio-temporal spread across Canada. We also explore impact seasonal multiannual dynamics climatic factors on transmission...