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Epizootic hemorrhagic disease in Alberta, Canada
Margo J Pybus1, Madhu Ravi, Colleen Pollock
11 Wildlife Management Branch, Environment and Sustainable Resource Development, 6909-116 St., Edmonton, Alberta T6H 4P2, Canada.
Journal of Wildlife Diseases
|May 9, 2014
Summary
Epizootic hemorrhagic disease virus serotype 2 was identified in southern Alberta white-tailed deer. This finding suggests a localized outbreak impacting over 50 deer and three pronghorn antelope.
Area of Science:
- Veterinary Virology
- Wildlife Disease Ecology
Background:
- Epizootic hemorrhagic disease virus (EHDV) is a Culicoides-borne pathogen affecting ruminants.
- Serotype 2 is a significant strain with potential for widespread epizootics.
Observation:
- A dead white-tailed deer (Odocoileus virginianus) in southern Alberta tested positive for EHDV serotype 2 via RT-PCR in September 2013.
- Field teams observed at least 50 deer mortalities, predominantly white-tailed deer.
- Three pronghorn antelope (Antilocapra americana) also died during the suspected outbreak.
Findings:
- Confirmation of EHDV serotype 2 presence in Alberta wildlife.
- Evidence of a localized EHD outbreak causing significant mortality in white-tailed deer and pronghorn.
- Identification of a novel geographic region for EHDV activity.
Implications:
- Highlights the expanding geographic range of EHDV.
- Underscores the need for enhanced wildlife disease surveillance in Alberta.
- Informs management strategies for susceptible wildlife populations facing EHDV incursions.
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