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 ...

An unvaccinated Quarter Horse filly in Montrose County, Colorado, recently tested positive for West Nile virus (WNV) after ...

No deaths from West Nile virus were reported last year, but 2023 saw one of the deadliest years on record for West Nile Virus in Colorado, with 51 people dying due to complications from ...

A mosquito pool collected in the Delta area has tested positive for West Nile Virus (WNV). This is the first confirmed pool ...

On July 29, an unvaccinated, 6-year-old Standardbred mare in Las Animas County, Colorado, tested positive for West Nile virus (WNV). The horse developed clinical signs on July 24, including weakness ...

Spraying for West Nile virus-infected mosquitoes is planned for central Fort Collins. On Aug. 17, the spraying of a fine mist of permethrin-based product will occur within the following boundaries: ...