Last Friday (Aug. 13), the Larimer County Department of Health and Environment (LCDHE) confirmed Larimer County's first human case of the West Nile Virus for the 2021 season. Now, Boulder County is following suit.

A press release from Boulder County Public Health (BCPH) announced Boulder County's first human case of the West Nile Virus for the 2021 season on Wednesday (Aug. 18) — exactly one month after officials detected the virus in the area.

"No matter where you live, now is the time to be proactive in protecting yourselves and your family from West Nile Virus," said Marshall Lipps, an environmental health specialist with BCPH, in the release. "Prevention is key with WNV, so we urge residents to take precautions to prevent mosquito bites."

These precautions including following the four Ds:

  • DEET - apply DEET-enhanced insect repellent before going outdoors.
  • DRESS - wear long-sleeved shirts and pants when outside.
  • DUSK TO DAWN - stay indoors from dusk until dawn.
  • DRAIN - remove any standing water from your property.

Humans can contract the virus through the bite of an infected mosquito. The majority of West Nile Virus infections are mild; however, some cases can lead to encephalitis, meningitis, vision loss, paralysis, tremors, convulsions, coma, and death.

An infected person will usually experience symptoms between three to 14 days after an infected mosquito bites them. Consult your doctor immediately if you develop a fever, extreme fatigue, headaches, body aches, skin rashes, or swollen lymph nodes.

Officials estimate that the virus' transmission risk will subside after this year's first hard freeze. Learn more about the West Nile Virus here or by calling the Colorado Health Information Line at 1-877-462-2911.

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