EC Health Dept. Identifies Dengue Fever Cases News | July 24, 2024 | 0 | by Morgan McCarthy There’s a warning about a dengue fever outbreak in Eau Claire. The city/county health department issued the warning yesterday. Public health managers say 12 people in the area have come down with dengue fever since the beginning of the year. Dengue fever is spread by mosquitoes, and the mosquitoes in Wisconsin do not carry it. All 12 of the people who’ve been sick with dengue fever came from areas in the tropics where dengue fever is common. There’s no worry about the fever spreading in Eau Claire. People cannot give dengue fever to other people.