Human case of EEE confirmed in Cass Co.; aerial treatment complete

Modesto Morganelli
Ottobre 9, 2019

Five additional cases of EEE have been confirmed in horses in Jackson, Kent and Tuscola counties, according to officials.

The Michigan Department of Health and Human Services paid for treatments covering 557,000 acres in 14 counties, including part of Lapeer County. "We chose to conduct aerial treatment to protect the health and safety of Michiganders".

Aerial spraying was conducted in portions of Allegan, Barry, Berrien, Calhoun, Cass, Jackson, Kent, Lapeer, Livingston, Montcalm, Newaygo, St. Joseph, Van Buren and Washtenaw counties.

She said the danger of EEE has not completely subsided in MI. Severe cases of EEE (involving encephalitis, an inflammation of the brain) begin with the sudden onset of headache, high fever, chills, and vomiting 4 to 10 days after a mosquito bite.

To date, three people have died in CT from the disease.

MDHHS recommended areas in Kalamazoo County receive the aerial treatment, but too many residents opted out for the spray to be effective. It is one of the most risky mosquito-borne illnesses in the USA with a 33 percent fatality rate among humans.

Khaldun, however, urges MI residents to continue taking precautions - like staying inside after dark or using bug spray - until a hard frost can kill the mosquito population.

No further aerial treatments are planned in MI because the organic pesticide Merus 3.0, which was used in the spraying, works best when temperatures are above 50 degrees.

Mosquitoes carrying the deadly EEE have been found in four new towns.


Applying insect repellents that contain the active ingredient DEET, or other U.S. Environmental Protection Agency-registered product to exposed skin or clothing, and always follow the manufacturer's directions for use.

Wearing long-sleeved shirts and long trousers when outdoors.

Maintain windows and door screening to help keep mosquitoes outside.

Use nets and/or fans over outdoor eating areas.

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