Archuleta County Public Health is notifying residents that two local cases of West Nile virus have been confirmed in Archuleta County.
West Nile virus is most commonly spread through the bite of an infected mosquito. While most people who become infected do not develop symptoms, some may experience a mild illness. Serious illness is uncommon, but residents should take reasonable precautions to reduce their risk of mosquito bites.
The Colorado Department of Public Health and Environment reports that mosquito season in Colorado typically runs from late spring through early fall, with the highest risk of West Nile virus transmission from July through September. When the virus shows up in mosquitoes, it signals that it’s time for people in the area to use precautions for the rest of the season.
While most people infected with West Nile virus don’t develop symptoms, the virus can cause serious, potentially life-threatening illness. People over 60 and those with certain medical conditions are at greater risk of complications. Seek medical care if you experience fever, severe headaches or confusion after a mosquito bite. Symptoms typically begin within several days after an infected mosquito bite. Most people with mild illness recover completely, although fatigue and weakness can sometimes last for several weeks or longer.
Seek medical attention promptly for severe symptoms, including high fever, severe headache, neck stiffness, confusion, muscle weakness, tremors, numbness or paralysis. People who are older or who have certain underlying health conditions or weakened immune systems are at greater risk for serious illness.
The best way to protect yourself and your family from West Nile virus is to prevent mosquito bites: Use insect repellent with DEET, picaridin, IR3535, oil of lemon eucalyptus or para-menthane-diol. Follow label instructions; wear long, loose-fitting clothing such as long sleeves and pants when practical; avoid outdoor activities around dusk and dawn, when mosquitoes that commonly spread West Nile virus are most active; keep mosquitoes outside by using screens on windows and doors and repairing holes in screens; eliminate standing water around your home. Empty or change water in items such as buckets, flowerpots, birdbaths, tires, children's toys and other containers at least weekly; for larger or permanent areas of standing water that cannot be eliminated, consider appropriate mosquito-control measures or contact a local mosquito control professional for guidance.
There is currently no specific medication to treat West Nile virus. For people experiencing mild illness, treatment generally focuses on relieving symptoms. Rest, drinking plenty of fluids, and over-the-counter medication such as acetaminophen can help with fever, headaches and body aches.
If you develop symptoms that could be associated with West Nile virus, contact your health care provider and let them know about your possible mosquito exposure. Severe symptoms require immediate medical attention.
The presence of West Nile virus in our community is a reminder that mosquito season is still active. Taking a few simple precautions can significantly reduce your risk of mosquito bites.
For additional information about West Nile virus, including symptoms, prevention, and treatment, visit the Centers for Disease Control and Prevention: www.cdc.gov/west-nile-virus/.
Residents with questions may contact Archuleta County Public Health at (970) 264-2409.
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