Public Comments To avoid mosquito bites, wear light-coloured, long-sleeved clothing when outside and apply a mosquito repellent with DEET or Icaridin. 
Crows, ravens, and blue jays are no longer used as an early warning system for West Nile Virus (WNV). Public health units in Ontario no longer collect dead birds for WNV testing. The Canadian Wildlife Health Cooperative at the Ontario Veterinary College may accept dead crows, blue jays, and ravens for testing if certain conditions are met. For more information, call 1-866-673-4781 or 519-824-4120 ext 54662.
Contact Information
Alternate Name WNV
Former Name Wellington Dufferin Guelph Health Unit
Office Phone Toll free 1-800-265-7293 ext 4753
Fax Guelph Office 519-823-4905
Primary Contact Shawn Zentner, Program Manager, Health Protection; Phone: 1-800-265-7293 ext 4230; Email:
Alternate Contact Mike Coburn, Public Health Inspector; Phone: 1-800-265-7293 ext 4289; Email:
Site Location Guelph-University of Guelph Area
Located In Community Guelph
Address & Map
160 Chancellors Way
Guelph, ON N1G 0E1
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Intersection Edinburgh Rd S and Stone Rd W
Physical Access Fully Accessible
Description & Services
Description (Service) To prevent the spread of West Nile virus, Public Health: 
* treats catch basins, roadside ditches and storm-water retention ponds with larvicide to lower risk of transmission of mosquito-borne illnesses 
* monitors the numbers, species, and locations of mosquito populations in the community 
* investigates complaints about standing water on private properties
Hours Mon-Fri 8:30 am-4:30 pm
Dates Larvicide treatment program May-Sep
Areas Served Dufferin County ; Guelph ; Wellington County
Eligibility Contact family physician for the following symptoms: fever, swelling and tenderness of the salivary glands, especially the parotid glands (lower cheek area on either or both sides of the face), headache, cold-like symptoms
Application Contact Public Health to report standing water on private properties (e.g. ponds, unmaintained swimming pools) or to request a larvicide treatment for a catch basin on your property. 
For more information about West Nile virus, or to download a request for a free larvicide treatment, see Wellington-Dufferin-Guelph Public Health website or call 1-800-265-7293, or visit Health Canada - West Nile Virus
Languages English
Fees None
Other Details
Legal Status (50) Non Profit
Service Categories Communicable Disease Control