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Colorado: 2025 West Nile

Shiloh

Shiloh

Editor, Senior Moderator
Source: https://coloradocommunitymedia.com/...t-human-cases-of-west-nile-virus-in-colorado/

Adams County records the first human cases of West Nile virus in Colorado
Health officials say West Nile virus has still not been detected in Adams County mosquitoes
by Monte Whaley July 18, 2025​

The first two human cases of West Nile Virus in Colorado have been reported by the Adams County Health Department.

Officials said the two human cases likely contracted the virus from mosquitoes in late June. Officials added the West Nile virus has not been detected in mosquitoes in Adams County.

“…Neighboring counties have reported positive mosquitoes,” according to a statement from Adams County.​..
 
Source: https://www.cbsnews.com/colorado/news/colorado-mosquito-bite-family-warning-west-nile-virus/


Local News
Colorado man fights for his life after mosquito bite; family shares warning about West Nile virus
colorado
By Jasmine Arenas
July 18, 2025 / 9:12 PM MDT / CBS Colorado​

A Coloradan named James Martinez has been in the ICU for a week with West Nile virus after being bitten by a mosquito. His family is speaking out about what happened in hopes of warning others.

"He got bit by a mosquito and his whole life changed overnight," his wife, Victoria Martinez, said.

Sitting on a bench outside the hospital where the 62-year-old is fighting for his life, his daughter, Lorie Tarango, and wife, Victoria Martinez, are hoping for the best but preparing for the worst.​..
 
Source: https://www.cpr.org/2025/07/25/colorado-west-nile-death/

Colorado records first human death from West Nile virus in 2025
By John Daley
Jul. 25, 2025, 3:04 pm​

Colorado recorded its first human death of the year from West Nile virus on Friday.

The case was in an adult from Lafayette. That's according to the state health department and Boulder County Public Health, in a press release.​

State health officials with the Colorado Department of Public Health and Environment said they're “seeing concerning trends” with the virus. They've confirmed nine human cases of West Nile Virus in residents of eight counties this year. It's also been found in mosquitoes in eight of the 16 counties that have tested the insects this season. That includes Adams, Arapahoe, Boulder, Broomfield, Denver, Jefferson, Larimer, and Weld counties...
 
Source: https://www.kktv.com/2025/07/25/hea...rst-human-case-west-nile-virus-pueblo-county/

Health officials confirm first human case of West Nile virus in Pueblo County
By Brianna Leonard
Published: Jul. 25, 2025 at 12:49 PM EDT|Updated: 5 hours ago

PUEBLO, Colo. (KKTV) - Public Health officials announced Friday that a person in Pueblo County had been hospitalized with the West Nile virus.

This is the county’s first human case of the virus. Mosquitoes in Larimer County tested positive for the virus in June, and the first human cases in Colorado were confirmed in Adams County on Tuesday.​..
 
Source: https://www.krqe.com/health/la-plata-county-reports-first-human-case-of-west-nile-virus-for-2025/

La Plata County reports first human case of West Nile virus for 2025
by: Isaac Cruz
Posted: Aug 1, 2025 / 11:38 AM MDT
Updated: Aug 1, 2025 / 11:38 AM MDT

​LA PLATA COUNTY, Colo. (KRQE) — The first human case of West Nile virus in La Plata County was reported to the La Plata County Health Department in July, according to the county. Officials are reminding residents to take precautions to protect themselves from the virus commonly spread by infected mosquitoes...
 
Source: https://www.cbsnews.com/colorado/news/denver-jefferson-county-west-nile-first-human-case-2025/

First human cases of West Nile virus detected in Denver, Jefferson County this season
colorado
By Christa Swanson
August 4, 2025 / 4:59 PM MDT / CBS Colorado​

The Denver Department of Public Health and Environment announced Monday that the city's first human case of West Nile virus this season has been confirmed. Officials in Jefferson County have also confirmed their first human cases of the virus, with three people infected.

There have been over one dozen cases of West Nile in Colorado this year, which has resulted in one death.

According to the Colorado Department of Public Health and Environment, West Nile virus has been found in mosquitoes in eight of the 16 counties that have tested mosquitoes this year, including Adams, Arapahoe, Boulder, Broomfield, Denver, Jefferson, Larimer and Weld counties. In Fort Collins, the West Nile infection rate in mosquitoes is currently 11 times higher than the historical average, and four times higher than it was in 2023...
​
 
Source: https://www.facebook.com/FCDPHE/pos...gPm2iq2SXNWHkCePsUAGibPJnd1Djda93qdoQ5qD9967l


Fremont County Department of Public Health & Environment - Colorado
21h ·
For Immediate Release:
Fremont County (Aug. 18, 2025) - The Fremont County Department of Public Health and Environment has confirmed two cases of West Nile virus- related deaths in persons from Fremont County. “We are deeply saddened by the two recent West Nile virus–related deaths in our community. This is a reminder of the seriousness of the disease, and I urge everyone to take precautions to protect themselves and their loved ones,” said Paula Buser, Public Health Director.
West Nile virus is primarily spread through the bite of an infected mosquito. West Nile virus develops in the human body within two to 14 days after a bite from an infected mosquito. West Nile virus can be serious including fever, meningitis, encephalitis, and have potential for causing long-term illness and disability. West Nile virus can affect any age group, but people aged 60 years and older and those with certain medical conditions are at greater risk of serious illness.
Symptoms of West Nile virus may include fever, fatigue, headache, muscle weakness, rash, stiff neck, or changed mental state. Some infected people experience a feeling of extreme tiredness and weakness for several weeks. Immediately seek medical attention if you have any of these symptoms.
Most West Nile virus cases in Colorado occur during the months of August and September. The most effective way to prevent West Nile virus is to avoid mosquito bites.
To protect yourself:
• Use effective insect repellant with DEET, picaridin, IR3535, oil of lemon eucalyptus, or para-menthane-diol when you go outside.
• Limit outdoor activities at dusk and dawn when mosquitos that spread the virus are most active.
• Wear protective clothing (long pants, long-sleeved shirts, and socks).
• Drain standing water around your house weekly. Treat water that can’t be drained with Bti larvicide.
• Install and repair screens on doors and windows.
For more information on West Nile virus, visit https://cdphe.colorado.gov/.../west.../west-nile-virus-data​
 
Source: https://www.montrosepress.com/free_...cle_8b91de2c-240e-4760-ab0e-8c69261bb531.html

Montrose reports first West Nile Virus death — County currently has two confirmed cases
Special to the MDP Aug 27, 2025 Updated 6 hrs ago

Montrose County Public Health has reported that a man has died after contracting the West Nile Virus.

The following is from Montrose County Public Health:

Montrose County Public Health has confirmed the first West Nile Virus-related death of the year. The individual, a man in his early 80s, is believed to have contracted the virus earlier this month. At this time, there are two confirmed cases of West Nile Virus in the county. The virus is most commonly transmitted to humans through the bite of an infected mosquito.​..
​
 
Source: https://www.westernslopenow.com/top...-of-west-nile-virus-reported-in-delta-county/


Two human cases of West Nile Virus reported in Delta County
by: Breana Sinclair
Posted: Sep 11, 2025 / 01:26 PM MDT
Updated: Sep 11, 2025 / 01:26 PM MDT


DELTA COUNTY, Colo. (KREX) — On Wednesday, Delta County Public Health reported two confirmed human cases of West Nile Virus (WNV). These are the first reported human cases in Delta County for 2025.

The two cases involve individuals who are over 80 years old. One is a male from the Delta area, and the other is a woman from the Surface Creek area.​..
 
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