André Ravel

André Ravel
Université de Montréal | UdeM · Faculty of Veterinary Medicine

DMV, MSc, PhD

About

109
Publications
9,200
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1,425
Citations
Additional affiliations
December 2011 - present
Université de Montréal
Position
  • Professor (Associate)

Publications

Publications (109)
Article
Full-text available
The relationship between northern Indigenous people and dogs has evolved over the past years alongside events such as colonization, settlement, proliferation of snowmobiling and other socio-cultural and environmental changes. These changes have had negative impacts on this relationship, and with the endemic presence of arctic fox rabies, dog bites...
Article
Full-text available
While dogs can have a positive impact on physical and mental health, they also represent a public health risk in terms of bites and zoonotic diseases. In the specific context of Inuit villages, the role, care, and value of dogs are culturally different than in southern Canada. Furthermore, rabies is endemic to the region. Dogs are frequently kept o...
Poster
Full-text available
Au Québec, les chiens font partie intégrante de l'environnement social et culturel des régions nordiques habitées principalement par des communautés inuites, cries, naskapies et innues. Si les populations de chiens contribuent au bien-être des humains, leur présence génère divers risques pour la santé, tels que la transmission de la rage par des mo...
Poster
Full-text available
Until now, interventions addressing health issues at the human-dog interface in northern communities are focusing mainly on reducing dogs-related risks (bites, rabies). They tend to neglect dogs-related benefits (like emotional support), local perspectives or dog's well-being. Adopting a One Health, participatory approach, we aim to create a collab...
Poster
Full-text available
Until now, interventions addressing health issues at the human dog interface in northern communities focus mainly on reducing dogs-related risks (bites, rabies). They tend to neglect dogs-related benefits (like emotional support), local perspectives or dog wellbeing. Therefore, our project aims to create a collaborative decision tool to identify th...
Poster
Full-text available
Dog bites are a major public health issue in Canadian and Alaskan northern indigenous communities. However, our scoping review shows that they remain poorly described and understood. More research is needed to explore risk factors associated with dog bites in-depth. Further works should better integrate indigenous perspectives and knowledge, and ad...
Article
Full-text available
Background: In Nunavik, Arctic rabies is still endemic due to a spillover from wildlife to dogs. The prevention of human exposure and the management of potential exposure is a significant public health concern in this region. Methods: This study retrospectively describes cases of potential exposure to rabies in humans as reported to the Nunavik...
Article
Antimicrobial resistance (AMR) is a major public health threat worldwide. The main objective of this study was to compare AMR in Campylobacter from broiler chickens raised on Canadian farms and their products in different geographical regions of Canada. To do this, antimicrobial susceptibility results from isolates of Campylobacter recovered from a...
Preprint
Background: In Nunavik, Arctic rabies is still endemic due to a spillover from wildlife to dogs. The prevention of human exposure and the management of potential exposure is a significant public health concern in this region. Methods: This study retrospectively describes cases of potential exposure to rabies in humans as reported to the Nunavik Pub...
Preprint
Background In Nunavik, arctic rabies is still endemic with spillover from wildlife to dogs. The prevention of human exposure and the management of potential exposure is a high public health concern there. Methods The study retrospectively described cases of potential exposure to rabies in human reported to the Nunavik Public Health Board using the...
Preprint
Full-text available
Background: In Nunavik, Arctic rabies is still endemic due to a spillover from wildlife to dogs. The prevention of human exposure and the management of potential exposure is a significant public health concern in this region. Methods: This study retrospectively describes cases of potential exposure to rabies in humans as reported to the Nunavik Pub...
Article
Full-text available
The economic evaluation of health surveillance systems and of health information is a methodological challenge, as for information systems in general. Main present threads are considering cost-effectiveness solutions, minimizing costs for a given technically required output, or cost-benefit analysis, balancing costs with economic benefits of duly i...
Article
Full-text available
Climate change has been linked with the establishment and geographical expansion of zoonotic diseases, an example of which is the well-documented increase in human cases of Lyme disease in Quebec, Canada. As temperatures continue to increase in Quebec, it is anticipated that several zoonotic diseases will be affected. In response to the growing zoo...
Article
Full-text available
Background Toxoplasma gondii, a zoonotic protozoan parasite, infects mammals and birds worldwide. Infection in humans is often asymptomatic, though illnesses can occur in immunocompromised hosts and the fetuses of susceptible women infected during pregnancy. In Nunavik, Canada, 60% of the Inuit population has measurable antibodies against T. gondii...
Article
Full-text available
One Health surveillance for antimicrobial resistance has been promoted by the scientific community and by international organizations for more than a decade. In this article, we highlight issues that need to be addressed to improve the understanding of the effectiveness of One Health surveillance for antimicrobial resistance. We also outline the ev...
Poster
Full-text available
In 2017, the Institute of Global Health (University of Geneva), the Swiss TPH (University of Basel) and the University of Montreal organised, in Geneva, the First Global Flipped Classroom on One Health: From MOOCs to real world challenges. With the support of SSPH+, this workshop brought together 12 national and international learners from the MOOC...
Article
Full-text available
Dogs have been an integral part of the Inuit social and cultural environment for generations, but their presence also generates public health risks such as bites and exposure to zoonotic diseases such as rabies. In Nunavik, Canada, some prevention and control interventions targeting dogs have been implemented but have not demonstrated their effecti...
Article
Full-text available
Adjusting to global climate and socio-environmental changes has become a major issue for many societies, especially in the Arctic. Many Inuit wish to better understand the changes taking place. In 2013, an international Observatory of Human–Environment Interactions (OHMi) was established in Nunavik to identify these changes, study their cumulative...
Article
Full-text available
Outbreaks of Toxoplasma gondii and Trichinella spp. have been recurring for decades among Inuit of Nunavik, northeastern Canada. Contact with wildlife has been identified as a risk factor for Inuit exposure to T. gondii, but reservoirs have yet to be confirmed based on direct detection of DNA or organism. Similarly, little is known about the occurr...
Article
Full-text available
In 2016 and 2017 the first three MOOCs (Massive Online Open Course) addressing One Health were released, two of them by University of Geneva and University of Basel (Switzerland). With the support of Swiss School of Public Health and using these two highly interdisciplinary MOOCs, the first ‘Global Flipped Classroom in One Health’ was organized in...
Article
Full-text available
Prioritizing resources for optimal responses to an ever growing list of existing and emerging infectious diseases represents an important challenge to public health. In the context of climate change, there is increasing anticipated variability in the occurrence of infectious diseases, notably climate-sensitive vector-borne diseases. An essential st...
Data
Individual stakeholder weights for all criteria ordered by importance for the research intervention domain. (DOCX)
Data
Supporting references used to assess disease scores for the pilot prioritization. (DOCX)
Data
Individual stakeholder weights for all criteria ordered by importance for the surveillance intervention domain. (DOCX)
Data
Weight stability interval sensitivity analysis for all stakeholders for the prevention & control domain. (DOCX)
Data
Individual stakeholder weights for all criteria ordered by importance for the prevention and control intervention domain. (DOCX)
Data
Weight stability interval sensitivity analysis for all stakeholders for the surveillance domain. (DOCX)
Article
Campylobacteriosis, the most frequent bacterial enteric disease, shows a clear yet unexplained seasonality. The study purpose was to explore the influence of seasonal fluctuation in the contamination of and in the behaviour exposures to two important sources of Campylobacter on the seasonality of campylobacteriosis. Time series analyses were applie...
Article
Full-text available
Human campylobacteriosis is a common zoonosis with a significant burden in many countries. Its prevention is difficult because humans can be exposed to Campylobacter through various exposures: foodborne, waterborne or by contact with animals. This study aimed at attributing campylobacteriosis to sources at the point of exposure. It combined compara...
Data
Correlation of the mean of the posterior values of the kij*aj values (n = 40 subtypes * 8 sources) estimated by the exposure- and the prevalence-based Hald models. (TIF)
Data
Correlations between the mean of the posterior aj source specific parameter values (n = 8 sources) estimated by the prevalence-based Hald model and those estimated by the proportion- and the exposure-based Hald models. (TIF)
Data
Correlation of the mean of the posterior values of the kij*aj values (n = 40 subtypes * 8 sources) estimated by the proportion- and the prevalence-based Hald models. (TIF)
Data
Campylobacter CGF data analyzed. It includes the isolate identification number, the Campylobacter species, the origin of the isolate, the year of the sample collection, the CGF pattern, and the CGF subtype number based on the 100% similarity. (XLSX)
Data
Correlations between the mean of the posterior qi subtype specific parameter values (n = 40 subtypes) estimated by the prevalence-based Hald model and those estimated by the proportion- and the exposure-based Hald models. (TIF)
Data
Relative changes by source in the mean of the posterior values of the kij*aj (n = 40 subtypes * 8 sources) estimated by the proportion-, the prevalence-, and the exposure-based Hald models. (TIF)
Poster
Full-text available
In Nunavik, the role of domestic dogs in harbouring and transmitting gastrointestinal parasites to people is poorly documented. The objectives of our study were to: 1) document spatio-temporal activity patterns of the Kuujjuaq dog population 2) measure the prevalence of gastrointestinal parasites in dogs 3) determine what factors influence parasiti...
Article
Full-text available
Background: Campylobacteriosis is a prominent bacterial gastrointestinal infection worldwide with several transmission pathways. Its non-foodborne routes have been less documented and quantified. The study aimed to quantitatively explore the role of potential risk factors not directly associated with food for sporadic cases of C. jejuni infection...
Article
To inform source attribution efforts, a comparative exposure assessment was developed to estimate the relative exposure to Campylobacter, the leading bacterial gastrointestinal disease in Canada, for 13 different transmission routes within Ontario, Canada, during the summer. Exposure was quantified with stochastic models at the population level, wh...
Article
Full-text available
The recent emergence of West Nile virus (WNV) in North America highlights vulnerability to climate sensitive diseases and stresses the importance of preventive efforts to reduce their public health impact. Effective prevention involves reducing environmental risk of exposure and increasing adoption of preventive behaviours, both of which depend on...
Data
Additional individual-level protection strategy performance profiles. (TIF)
Data
Regional-level management intervention profiles (interventions 18–23). (TIF)
Data
Matrix of evaluation scores for the interventions in the Quebec WNV management model. (DOCX)
Data
References used in the assessment of management interventions. (DOCX)
Data
Regional-level management intervention profiles (interventions 11–16). (TIF)
Data
Stakeholder weighting results by criteria and category for the Scenarios 1& 2 (low risk transmission). (DOCX)
Data
Stakeholder weighting results by criteria and category for the Scenarios 3& 4 (medium risk transmission). (DOCX)
Data
Stakeholder weighting results by criteria and category for the Scenarios 5& 6 (high risk transmission). (DOCX)
Data
Measurement scales used to score interventions in the model. (DOCX)
Poster
Full-text available
Contact details of the presenting author: cecile.aenishaenslin@umontreal.ca, 3200 Sicotte, Saint-Hyacinthe, Québec, J2S 7C6 Background: The recent emergence of Lyme disease in Quebec, Canada, is a good example of a complex health issue. Preventive interventions can have environmental, social and economic impacts and decision-making requires a syste...
Article
Full-text available
The effects of climate change on infectious diseases are an important global health concern and necessitate decisions for allocation of resources. Economic tools have been used previously; however, how prioritization results might differ when done using broader considerations identified by local stakeholders has yet to be assessed. A multicriteria...
Article
Full-text available
Background Lyme disease control strategies may include tick control interventions in high risk areas. Public authorities may be interested to assess how these types of interventions are perceived by the public which may then impact their acceptability. The aims of this paper are to compare socio-cognitive factors associated with high acceptability...
Article
Full-text available
Background: Lyme disease (LD) is a vector-borne disease that is endemic in many temperate countries, including Switzerland, and is currently emerging in Canada. This study compares the importance of knowledge, exposure and risk perception for the adoption of individual preventive measures, within and between two different populations, one that has...
Article
Full-text available
In the context of meat inspection modernization, the current mandatory incision and visual inspection of all hog mandibular lymph nodes (MLNs) to detect signs of infection by Mycobacterium bovis, a zoonotic infection is examined. Canadian data of MLN pathology and microbial contamination are scarce and the performance of the current regulatory insp...
Article
Full-text available
In the context of a risk-based meat inspection modernization, the change towards a visual only inspection of all hog mandibular lymph nodes (MLN) has been made in some countries and is considered in Canada. In fact, the current mandatory incision and visual inspection of all MLNs put in force a century ago to detect signs of infection by Mycobacter...
Article
Full-text available
Designing preventive programs relevant to vector-borne diseases such as Lyme disease (LD) can be complex given the need to include multiple issues and perspectives into prioritizing public health actions. A multi-criteria decision aid (MCDA) model was previously used to rank interventions for LD prevention in Quebec, Canada, where the disease is em...
Article
Full-text available
Public health authorities in Quebec have responded to the progressive emergence of Lyme disease (LD) with surveillance activities and education for family physicians (FPs) who are key actors in both vigilance and case management. To describe FPs' clinical experience with LD, their degree of knowledge, and their practices in two areas, one with know...
Article
Full-text available
In Central Africa, bushmeat is commonly consumed, although its importance relative to other meats is incompletely understood. The urban demand for bushmeat is thought to be fueling the unsustainable trade of wildlife. In July-August 2010, 205 households were surveyed in Port-Gentil, Gabon, to describe meat consumption patterns and bushmeat acquisit...
Article
Full-text available
Lyme disease (LD) is a tick-borne emerging disease in Canada that has been endemic in many temperate countries for decades. Currently, one of the main approaches for LD prevention is the promotion of individual-level preventive behaviors against ticks. Health behaviors are influenced by individual and social factors, one important of which is risk...