MADISON, Wis. — The Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP) confirms that a 4-year-old grade mare in Portage County has tested positive for Eastern Equine Encephalitis (EEE). It is the state’s first confirmed case of EEE in a horse this year. In 2025, DATCP documented one case of EEE in horses; access […] The post Portage County Horse Confirmed with Eastern Equine Encephalitis appeared first on Morning Ag Clips .