The increase in mosquitoes they've identified as being infected with West Nile has come earlier this year than in past years.
Boulder County Public Health recently confirmed that mosquitoes in Erie, Louisville and Longmont, Colorado, have tested positive for West Nile virus (WNV), providing a reminder for the campus community to take precautions when outdoors this time of year.
A horse also tested positive for the virus in Owyhee County on July 27.
About one in 150 will develop serious and potentially life-threatening conditions that include encephalitis, which is inflammation of the brain, or meningitis.
The agency didn't release any specific details on the case, but said the virus has been confirmed in mosquitoes throughout the county. The best method to reduce the risk of infections is avoiding mosquito bites.
The West Nile Virus has been detected in numerous states, including New York, California and Texas, the Centers for Disease Control and Prevention said.
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Previous year in the United States, the West Nile infection was reported in over 2000 patients, causing deaths of 121 people.
Carroll and Helwig recommend people eliminate any artificial containers with standing water on their property, such as buckets, wheelbarrows or toys. A rare number of people can experience more significant symptoms. Change water in bird baths every three to four days.
DUSK and DAWN are when mosquitoes are most active.
Mosquitoes are usually most prevalent from late April until mid-October. Don't apply repellents containing permethrin directly to skin.
Use DEET-enhanced insect repellent or alternatives.
If weather permits, wear long sleeves, trousers and socks when outdoors.