Idaho Reports 1st Human West Nile Meningitis Case in 2026, Hospitalizing Canyon County Resident
Updated
Updated · Idaho Capital Sun · Aug 18
Idaho Reports 1st Human West Nile Meningitis Case in 2026, Hospitalizing Canyon County Resident
3 articles · Updated · Idaho Capital Sun · Aug 18
Summary
A Canyon County resident over 65 became Idaho’s first reported human West Nile virus case of 2026 after developing meningitis; the person was hospitalized and is now recovering at home.
Mosquitoes carrying West Nile have again been detected in Southwest Idaho this summer, prompting state health officials to urge residents to prevent bites and remove standing water where mosquitoes breed.
About 1 in 5 infected people develop fever or other symptoms, while severe disease can spread to the brain or spinal cord and lead to hospitalization or death.
Health officials said older adults, people with certain medical conditions and those taking immune-suppressing treatments face higher risk, with severe illness and death risk up to 40% higher for immunosuppressed people.