Historical surveillance data collected for 2017 West Nile virus in Wisconsin. The information includes positive cases among birds, horses and within tested mosquito pools. Indicated human cases are both confirmed and probable. Tables show cases reported by age and month of illness onset.
2017 Annual Wisconsin West Nile Virus Summary Data
2017 Annual Wisconsin Summary Data
|Counties reporting WNV activity||66|
*Probable cases have presumptive positive laboratory results without confirmatory testing at CDC.
**The deaths are included among the confirmed and probable cases.
2017 Wisconsin Confirmed and Probable West Nile Virus Cases Reported by Age
2017 Wisconsin Confirmed and Probable West Nile Virus Cases Reported by Month of Illness Onset