Two yearling fillies in Monroe County, Wisconsin, were confirmed positive for Eastern equine encephalitis (EEE). One died and one was euthanized after both exhibited severe neurologic signs.
On July 28, the Wisconsin Department of Agriculture, Trade, and Consumer Protection received notice of the two confirmed cases of EEE. Both affected yearling fillies were owned by the same person and were residing in Monroe County. It was reported that both fillies had been vaccinated in November 2016 and again in December 2016, but they had not been vaccinated in 2017.
Both cases were confirmed (PCR) at Wisconsin Veterinary Diagnostic Lab. No quarantine was issued.
These are the first 2017 cases of EEE reported in Wisconsin.
The Equine Disease Communication Center works to protect horses and the horse industry from the threat of infectious diseases in North America. The communication system is designed to seek and report real time information about disease outbreaks similar to how the Centers for Disease Control and Prevention (CDC) alerts the human population about diseases in people.