A5044324396- Zoonotic diseases and public health
- Animal Disease Management and Epidemiology
- Climate Change and Health Impacts
- Agriculture Sustainability and Environmental Impact
- Viral Infections and Vectors
- Child Nutrition and Water Access
- Viral gastroenteritis research and epidemiology
- Rabies epidemiology and control
- Human-Animal Interaction Studies
- Fecal contamination and water quality
- Vector-Borne Animal Diseases
- Complex Systems and Decision Making
- Animal health and immunology
- Global Public Health Policies and Epidemiology
- Public Health Policies and Education
- Organic Food and Agriculture
- Sustainability and Climate Change Governance
- Agriculture and Farm Safety
- Vector-borne infectious diseases
- Food Safety and Hygiene
- Salmonella and Campylobacter epidemiology
- Mosquito-borne diseases and control
- Sustainable Agricultural Systems Analysis
- Clostridium difficile and Clostridium perfringens research
- Agriculture and Rural Development Research
University of Guelph
2010-2023
Université du Québec à Montréal
2023
Google (United States)
2017
Engineers Without Borders Canada
2011-2015
Health Canada
2010
Environment and Climate Change Canada
2005-2009
Memorial University of Newfoundland
2009
International Development Research Centre
2009
Ontario Veterinary College
1983-2009
Public Health Agency of Canada
2005-2009
OBJECTIVE : To examine whether companion animals or attachment to a animal was associated with changes in physical and psychological health older people the relationships between human social networks were modified by presence absence of animal. DESIGN A 1‐year longitudinal study standardized telephone interview data collected at baseline repeated SETTING Wellington County, Ontario, Canada PARTICIPANTS An age‐ sex stratified random sample (baseline n = 1054; follow‐up 995)...
Relationships between temperature and preoviposition, preeclosion, premolt developmental periods for the tick Ixodes scapularis Say were investigated by holding field-collected ticks in laboratory at temperatures of 0 to 32°C constant daylength. The duration these decreased significantly with increasing temperature. Host origin, prior storage 4°C, season collection also associated variations preoviposition period. For each stage, effect on development rate was best described as a power...
Preface David Waltner-Toews, by Nina-Marie E. ListerPart I. Some theoretical bases for a new ecosystem approach 1. An Introduction to Systems Thinking James Kay 2. Framing the Situation: Developing system description Kay3. Scale and type: requirement addressing complexity with dynamical quality Tim Allen4. Self-Organizing, Holarchic Michelle Boyle 5. So what changes? Implications of an management 6. Bridging Science Values: The Challenge Biodiversity Lister7. cultural basis Fikret Berkes...
Abstract Recent outbreaks of Escherichia coli O157:H7, Campylobacter, and Cryptosporidium have heightened awareness risks associated with contaminated water supply. The objectives this research were to describe the incidence distribution waterborne disease in Canada relation preceding weather conditions test association between high impact events outbreaks. We examined extreme rainfall spring snowmelt 92 Canadian 1975 2001, using case-crossover methodology. Explanatory variables including...
Waltner-Toews, D., and J. Kay. 2005. The evolution of an ecosystem approach: the diamond schematic adaptive methodology for sustainability health. Ecology Society 10(1): 38. https://doi.org/10.5751/ES-01214-100138
Abstract Objective —To determine whether dogs that visited human health-care facilities were at greater risk of acquiring certain health-care–associated pathogens, compared with performing animal-assisted interventions in other settings, and to identify specific behaviors associated an increased these pathogens. Design —Prospective cohort nested case-control studies. Animals —96 98 involved interventions. Procedures —Fecal samples nasal swab specimens collected from the time recruitment...
BACKGROUND: Nitrate and atrazine are two chemicals that heavily used in certain sectors of agriculture. They suspected to be associated with the development types tumours. METHODS: Existing data were obtained on incidence specific cancers, contamination drinking water nitrate, related agricultural practices for 40 ecodistricts province Ontario. The merged into a georelational database geographical statistical analyses. Weighted (by population size) least squares regression analyses conducted...
Disease and health outcomes occur within a complex socio-ecological context characterized by feedback loops across space time, self-organization, holarchies, sudden changes in organization when thresholds are reached. control programs, even if they successful, may undermine health; conversely, programs agriculture economic development designed to improve simply alter disease patterns. A research strategy promote sustainable must therefore incorporate multiple scales, perspectives, high...
SUMMARY Faecal swabs obtained from a random sample of 1131 cows and 659 calves on 100 southern Ontario dairy farms were examined for verocytotoxigenic Escherichia coli (VTEC) using Vero cell assay. Five isolates each positive culture tested similarly. Positive colonies with DNA probes Shiga-like toxin I (SLT-I) SLT-II sequences. Probe-negative neutralization verocytotoxicity anti-SLT-I anti-SLT-IIv antisera. Colonies showing no response in polymerase chain reaction procedure. by any test...