Dengue Virus: Wisconsin Data

Dengue virus is not spread by mosquitoes in Wisconsin. However, cases of dengue in returning travelers are reported every year. Global dengue virus activity has increased recently. As a result, more dengue illnesses have been identified in Wisconsin residents who traveled to a country where dengue is spread. 

A total of 38 dengue cases were reported among travelers in 2024, the highest number of cases among Wisconsin residents in a single year. All of these illnesses were in people who had traveled to an area with local transmission of dengue.

Dengue virus is preventable. Learn more about mosquito bite prevention.

Below are the statewide data for travel-associated dengue. For information on national data, visit the CDC's (Centers for Disease Control and Prevention) webpage on Dengue Data and Statistics in the United States.

Dengue virus data (2015-2024)

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