By Andi Anderson
Michigan officials have confirmed the state's first animal case of Eastern Equine Encephalitis (EEE) for 2026. The disease was detected in a one-year-old under-vaccinated Quarter Horse colt in Clare County. Despite receiving specialized veterinary care, the horse was humanely euthanized due to the severity of the illness.
The confirmed case serves as an important reminder that mosquito-borne diseases remain a threat to both animals and humans. Health officials noted that a human case of EEE has also been reported in Michigan this year, indicating active circulation of the virus among the state's mosquito population.
State Veterinarian Dr. Nora Wineland, DVM, MS, DACVPM, emphasized the risk posed by mosquito-borne diseases, stating, "While this is the first case of EEE detected in an animal this season, there has already been one human case of the disease this year. These detections clearly indicate EEE, as well as other possible mosquito-borne viruses, are circulating in the state s mosquito population. Preventing mosquito bites is crucial to prevent mosquito-borne diseases in our animals and families."
EEE is a serious viral disease transmitted through infected mosquito bites. It affects both animals and humans and is most commonly reported during late summer and early fall. The disease is not spread through direct contact between horses or from horses to people.
Public health officials are encouraging residents to take preventive measures seriously. Dr. Natasha Bagdasarian, Chief Medical Executive, warned about the danger of the disease, saying, "With the recent case of EEE in a Roscommon County resident and now this new detection, it is crucial that Michigan residents take precautions against mosquito bites. EEE is one of the most dangerous mosquito-borne diseases in the U.S., with a 30% fatality rate among people who become ill. We urge residents to take precautions such as using an EPA-registered insect repellent when outdoors, avoiding areas where mosquitoes are present if possible and wearing clothing to cover arms and legs to prevent bites."
Animal owners are advised to consult veterinarians about vaccinations against EEE and other mosquito-borne diseases. Additional recommendations include removing standing water, using approved insect repellents, housing animals indoors during peak mosquito activity, and seeking veterinary care if animals show signs of illness.
Residents can help protect themselves by using EPA-approved insect repellents, wearing long-sleeved clothing, maintaining window and door screens, and eliminating water sources where mosquitoes can breed.
The recent case highlights the importance of vaccination, mosquito control, and early prevention efforts to reduce the risk of EEE and other mosquito-borne diseases throughout Michigan.
Photo Credit: gettyimages-patrick-jennings
Categories: Michigan, General