Wednesday, September 10, 2025By Blake JacksonThe Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP) has confirmed the state’s first equine case of West Nile Virus (WNV) this year. In 2024, nine equine cases were recorded across the state, according to DATCP’s case map. Wisconsin’s Department of Health Services recently confirmed the first human case of WNV in 2025, bringing the state’s total to five so far this year. The American Association of Equine Practitioners (AAEP) includes WNV and Eastern Equine Encephalitis in its list of core vaccines recommended for all horses. Alongside vaccination, mosquito control is an important prevention strategy.