A Fort Collins resident has died from neuroinvasive West Nile virus, as reported by the Larimer County Department of Health and Environment on August 25. This marks the first West Nile virus death in the county this season. “We are saddened by this loss and extend our deepest condolences to this resident’s loved ones,” said Tom Gonzales, Larimer County's public health director. “This death underscores the potentially serious nature of West Nile virus.” There have been 20 confirmed cases in the county this season, affecting people from ages 24 to 86. Statewide, there are 69 confirmed cases, with 28 resulting in hospitalization and 28 showing neurological symptoms. West Nile virus is spread to people through the bite of an infected mosquito. Most people who are bitten by an infected mosquito will have no symptoms or a mild illness, similar to the flu. Less than 1% of people who are infected get a more severe illness that causes inflammation of the brain (encephalitis) or the tissues around the brain (meningitis). Symptoms usually appear within one to two weeks. There is no specific cure for the illness, only supportive care. Also Read: First Human West Nile Case Reported In Maryland While Kansas Battles Six InfectionsWest Nile Virus: Why Is There A Sudden Spike in Cases Across US? Infection rates in mosquitoes in west Fort Collins are 4.5 times higher than normal, according to an August 19 memo to the Fort Collins City Council. The city has sprayed to kill mosquitoes at least seven times this summer because the infection rate in mosquitoes has been high. The Minnesota Department of Health (MDH) has reported 20 cases of West Nile virus so far in 2025, with two of the infected people having died. The number of cases can change from year to year depending on factors like heat and rainfall. Because of the recent increase, health officials are urging people to be careful. "This is a high-risk time of year for West Nile virus," said Elizabeth Schiffman, supervisor of MDH's Vectorborne Diseases Unit. "It's important to prevent mosquito bites when people are enjoying time outside while the weather is still nice. That's the best way to avoid getting West Nile virus." Even with cooler weather and fewer mosquitoes, the virus is still active. Gonzales urges everyone to "take precautions" because "trap data still show that mosquitoes in Larimer County are carrying the virus.” Is There A Test To Detect West Nile Virus? According to the Centre of Disease Control and Prevention (CDC) West Nile virus is usually diagnosed by testing blood or spinal fluid for specific antibodies, which are proteins the body makes to fight the virus. These tests look for WNV-specific IgM antibodies, which are a key sign of a recent infection. In some cases, further testing is needed to confirm the diagnosis. A special test called the plaque-reduction neutralization test (PRNT) can help identify the exact virus causing the infection. Can West Nile Be Cured? Most people who get infected with West Nile virus will not show any symptoms. In fact, about 80% of people won't feel sick at all.Also Read: Israeli Scientists Created The First Lab-Grown Kidney That Survived 34 Weeks For those who do get sick, symptoms usually appear 2 to 14 days after being bitten by an infected mosquito. Symptoms can take longer to appear in people with a weakened immune system. There is no specific treatment for West Nile virus. For a mild illness, managing symptoms at home with over-the-counter medicine and rest is often enough. For a severe illness, patients are usually hospitalized for supportive care, such as IV fluids and pain medication. Can You Get West Nile More Than Once? According to South Dakota Department of Health, healthcare professional believe that it is possible to get West Nile virus more than once, but it is highly unlikely. After a person is infected with West Nile virus, the body develops immunity to the specific strain of the virus that caused the infection. This immunity is generally believed to be long-lasting, providing protection against future infections from the same strain. However, there are different strains of West Nile virus, and it's theoretically possible to be infected with a different strain. Additionally, a person's immune response can vary, and some people may have a weaker or less lasting immunity than others. For example, people with weakened immune systems may not develop strong, long-lasting immunity after their first infection. While re-infection is a possibility, the risk is extremely low. Most people who have had West Nile virus are considered to be protected from future infections. The most important prevention measure is to continue protecting yourself from mosquito bites.