Health officials are warning residents and visitors that the risk of West Nile virus is currently very high across Larimer County, and they are urging everyone to take steps now to protect themselves from mosquito bites. Mosquito trap data show that the vector index, which is a measure of how many mosquitoes are carrying West Nile virus, is over 1.0 in several areas of the county. That level is considered very high and signals a serious risk to public health.

A sample of the mosquito population in Larimer County tested positive for West Nile virus. They were found in the southeast area of Fort Collins. This marks the beginning of heightened risk for residents, especially as warmer weather leads to increased mosquito activity throughout the region. So far this year, no human cases of West Nile virus have been reported in Larimer County.

With several days of high temperatures in the forecast, the Larimer County Department of Health and Environment (LCDHE) is reminding everyone to know how to recognize signs of heat-related illness and take simple steps to stay cool, hydrated, and healthy. Heat-related deaths are on the rise across the United States, with more than 2,300 reported in 2023, one of the hottest years on record. Whether you’re working or playing outside, it’s important to be prepared and protect yourself from the dangers of extreme heat.

The Larimer County Department of Health and Environment (LCDHE) has confirmed a human case of tularemia in a resident of Larimer County. Health officials are reminding residents and visitors that a few simple precautions can help prevent illness from ticks and other wildlife while enjoying the outdoors this summer.