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August 15, 2017
Mosquitoes test positive for West Nile virus in Tillsonburg
Public Health reminds residents to protect themselves against the virus

A mosquito trap in Tillsonburg has tested positive for West Nile virus during routine surveillance activities by Oxford County Public Health. It is the first positive mosquito pool of the season in Oxford County.

Throughout the summer months, Public Health traps and tests mosquito pools across Oxford County on a weekly basis. With a positive pool identified, Public Health is reminding residents to cover up and clean up to avoid West Nile virus.


  • Wear a long-sleeved shirt and pants, especially in mosquito-prone areas.
  • Wear a bug repellent containing DEET.


  • Regularly clean and empty water holding containers like bird baths, wading pools, pet water dishes and children’s toys, which could be a breeding ground for mosquitoes.
  • Ensure rain barrels are covered with a fine screen and tightly sealed around the downspout.
  • Clear your yard of old tires, empty flower pots, buckets and any other debris where water collects.
  • Keep grass mowed and bushes trimmed in high use areas.
  • Make sure your doors and window screens fit tightly and are free of holes.

Oxford County has not had a human case of West Nile Virus since 2006; however, this positive mosquito pool is proof the virus is present in Oxford County. To date, in Ontario, there have been seven reported human cases of West Nile virus and 113 positive mosquito pools identified from 21 different health units. For more information, visit



West Nile virus is transmitted to people through the bite of an infected mosquito. Most people who are infected with WNV have no symptoms at all or have a mild illness such as fever, headache, muscle weakness, and body aches.

A few people will experience a more severe form of West Nile virus, called encephalitis (swelling of the brain), which may lead to a sudden and severe headache, high fever, stiff neck, and disorientation. Seniors, immunocompromised people, and young children are at greatest risk for health complications.

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About Oxford County

Located in the heart of southwestern Ontario at the crossroads of Highways 401 and 403, Oxford County has a population of approximately 114,000 people across eight municipalities that are “growing stronger together” through a partnership-oriented, two-tier municipal government incorporated as the County of Oxford. Oxford County is emerging as a leader in sustainable growth through the Future Oxford Community Sustainability Plan and County Council’s commitment to becoming a zero waste community and achieving 100% renewable energy by 2050. Situated in one of Ontario’s richest areas for farmland, agriculture is a key industry that serves as a springboard for some of the sustainable industries that are steadily diversifying the local economy. Oxford County offers a thriving local arts, culture and culinary community, as well as conservation parks, natural areas and more than 100 kilometres of scenic trails. The Oxford County Administration Building is located in Woodstock, Ontario. Visit or follow our social media sites at Oxford County’s Strategic Plan is at



Donna Kemp | Strategic Communication & Engagement
519.539.9800, ext. 3158 |

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