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Posted on: August 23, 2018

Human Case of West Nile Virus Reported in County


Human Case of West Nile Virus Reported in County,

Residents and Visitors Reminded to Take Precautions

Aug. 22, 2018 - Clear Creek County Communications, Colo. – The first human case of West Nile virus (WNV) in Clear Creek County has been reported for 2018—a previous case was reported in 2003. This is the 12th human case in Colorado for 2018, along with Weld, Larimer, Washington and Delta Counties.

According to the Colorado Department of Public Health and Environment (CDPHE), preventing mosquito bites is the #1 way to avoid getting any mosquito-borne illness. In 2017, there were 68 human cases of West Nile virus in Colorado, including four deaths, per CDPHE.

Per the Center for Disease Control, “…West Nile is a virus most commonly spread to people by mosquito bites…” “Use an EPA-approved insect repellent, wear protective clothing or stay indoors when mosquitoes are active, and mosquito-proof your home,” said Jennifer House, state public health veterinarian. Mosquitoes become infected when they feed on infected birds, then spread it to people or other animals by biting them. . WNV is not spread through coughing, sneezing, or touching.

While there are no vaccines to prevent or medications to treat WNV, most people infected do not have symptoms—about 1 in 5 people infected will develop a fever or other symptoms. About 1 in 150 infected people develop a serious, sometimes fatal, illness.

To protect yourself, CDPHE recommends:

  • Use insect repellents when you go outdoors. Repellents containing DEET, picaridin, IR3535, and some oil of lemon eucalyptus and para-menthane-diol products provide the best protection. Follow label instructions.

  • Limit outdoor activities at dusk and dawn, when mosquitoes that carry West Nile virus are most active.

  • Wear protective clothing (long pants, long-sleeved shirts and socks) in areas where mosquitoes are active. Spray clothes with insect repellent for extra protection.

To mosquito-proof your home:

  • Drain standing water around your house often. Empty water from tires, cans, flowerpots, clogged gutters, rain barrels, birdbaths, toys and puddles.

  • Install or repair screens on windows and doors.

For more information, visit the department’s West Nile virus web page. Check for human case numbers and mosquito trap results on the West Nile virus data page throughout the season. 

See a health care provider if you develop severe headaches or confusion.

For more information, contact John Bryan, Communications Director, at 303-679-2307, or email:

Clear Creek County Official Website:

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