As mosquito season continues across the Western Slope, Montrose County Public Health is reminding residents to stay vigilant following the confirmation of three human cases of West Nile virus in the county.

West Nile virus is primarily transmitted to humans through the bite of an infected mosquito. In Colorado, the highest concentration of human cases typically occurs during August and September, making continued prevention efforts critical over the coming weeks.

“With three confirmed cases in Montrose County, we want residents to be aware that West Nile virus is present in our county and take simple steps to reduce their risk,” said Lisa Gallegos, Emergency Preparedness and Response Coordinator for Montrose County Public Health.

While the virus is present in the community, health officials note that the vast majority of those infected do not develop symptoms. Roughly 20% of individuals may experience flu-like symptoms, and fewer than 1% develop serious, potentially life-threatening illnesses. Adults over the age of 60 and individuals with underlying medical conditions face a greater risk of severe illness. Anyone experiencing severe symptoms, such as a severe headache or sudden confusion, should contact a healthcare provider immediately.

Montrose County Public Health recommends the following precautions to minimize the risk of mosquito bites:

Protect Yourself Outdoors

  • Use effective repellent: Apply insect repellents containing DEET, picaridin, IR3535, oil of lemon eucalyptus, or para-menthane-diol. Always follow the label instructions.
  • Avoid peak hours: Limit outdoor activities at dusk and dawn, which is when mosquitoes carrying the West Nile virus are most active.
  • Cover up: Wear long pants, long-sleeved shirts, and socks when in mosquito-heavy areas. For extra protection, clothing can be treated with appropriate insect repellents.

Mosquito-Proof Your Property

  • Eliminate standing water: Drain any standing water around your home at least once a week. Check tires, cans, flowerpots, clogged gutters, rain barrels, birdbaths, and outdoor toys.
  • Secure your home: Install or repair window and door screens to keep mosquitoes outside.
  • Change outdoor lighting: Consider swapping standard outdoor lights for yellow “bug lights.” While they do not actively repel mosquitoes, they are less likely to attract them.

Free Mosquito Dunks Available

For larger areas of standing water that cannot be easily drained, the county is offering a free preventative solution. Montrose County residents can pick up free mosquito dunks—which prevent mosquito larvae from developing in standing water—at Montrose County Public Health, located at 1845 South Townsend Avenue in Montrose, while supplies last.

For additional information on West Nile virus, including a comprehensive list of symptoms and prevention strategies, visit the Colorado Department of Public Health and Environment’sWest Nile virus webpage.

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Western Slope Trellis Staff

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