As summer travel continues, members may have questions about New World Screwworm (NWS) and what it means for dogs travelling to or from affected regions. Guidance from Dr. Scott Weese of the Ontario Veterinary College’s Centre for Public Health and Zoonoses at the University of Guelph confirms that the risk of spread in Canada is low because the parasite cannot survive long term in Canada’s climate. While brief, localized transmission could occur during warmer periods if an infected animal enters Canada, the primary concern is exposure linked to travel to, or importation of animals from, affected regions.
If you plan to travel with your dog to an affected area or import a dog from one, it is recommended that you:
- Consult a veterinarian before travelling or importing a dog
- Use preventive treatments as advised by a veterinarian
- Closely monitor dogs for wounds or lesions for approximately one week after leaving an affected area or potential exposure
- Consult a veterinarian if a wound appears to be worsening, has discharge, a foul odour, visible maggots, or shows anything unusual that could be consistent with screwworm
Members are encouraged to review Canadian Food Inspection Agency resources for the most up-to-date information. The U.S. Department of Agriculture also provides information on confirmed detections of New World Screwworm. We will continue to monitor developments and share updates as needed. If you have any questions, please contact us at [email protected].