Information You Need to Know about Eastern Equine Encephalitis (EEE) in Michigan

09/30/2019 6:40 AM | Anonymous

Aerial spraying being conducted in 14 counties to combat mosquito-borne disease.      

Message from Michigan Department of Health and Human Services:
Eastern Equine Encephalitis cases continue increasing in Michigan.

LANSING, Mich. – Due to the large geographic distribution and number of Eastern Equine Encephalitis (EEE) cases in humans and animals, coupled with warm weather projections, the Michigan Department of Health and Human Services (MDHHS) and 12 local health departments have decided to conduct aerial spraying in high risk areas to combat further spread of the deadly disease EEE.

Spraying is scheduled take place starting Sunday, Sept. 29 starting at 8 p.m. However, the ability to spray is weather dependent and the schedule may change. You can view the aerial treatment zones and FAQ here.

Spraying will occur in the following 14 counties: Allegan, Barry, Berrien, Branch, Calhoun, Cass, Jackson, Kalamazoo, Kent, Lapeer, Montcalm, Newaygo, St. Joseph and Van Buren. Visit for more detailed information.

Read the Full Press Release Here

EEE and Aerial Spraying Frequently Asked Questions

EEE Activity in Michigan for 2019 – Confirmed Cases: MDARD Confirms 17 Cases of EEE

MDARD has confirmed a 17th case of Eastern equine encephalitis (EEE) in a Michigan animal from Livingston County. The animal, an unvaccinated three-year-old Paint gelding, had a sudden onset of neurologic signs on September 23, 2019. The horse was euthanized on September 23, 2019.

This case bring the total number of EEE cases for 2019 to 17, 15 equine and 2 canines, from the following counties: Barry (2), Calhoun (2 canine cases), Jackson (1), Kalamazoo (5), Lapeer (1), Livingston (1), Montcalm (1), Newaygo (1), and St Joseph (3). This is the first case of EEE identified in Livingston County this year.

EEE is transmitted through the bite of an infected mosquito. Horses are very susceptible to EEE; cases in dogs are extremely rare. There is a vaccine for horses, and owners should work with their veterinarian. Horses and other animals can be protected by applying mosquito repellent approved for that type of animal and bringing animals indoors from early evening until after sunrise when mosquitoes are most prevalent.

For more information on the reported equine cases, visit the Equine Disease Communication Center.

For more information on EEE in Michigan including the most recent weekly summary, please see The most recent Arbovirus Activity Weekly Summary (September 26, 2019) reports 27 animal EEE cases; these numbers include wildlife.

Learn More Here

Michigan Veterinary Medical Association

2144 Commons Parkway
Okemos, MI 48864-3986



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