Wisconsin Data and Maps 2008-2017
Undetermined cases demonstrate cross-reactivity or possible dual infection with more than one pathogen.
Wisconsin data, 2008-2017
These maps (2008-2015) are based on the county of residence of confirmed or probable cases.
Some infections may have been acquired during travel to other areas.
Rebecca Osborn, Vectorborne Disease Epidemiologist
Wisconsin Division of Public Health
Bureau of Communicable Diseases