At least seven Michigan counties will be blown up on Monday night to kill mosquitoes carrying Eastern equine encephalitis (EEE), a potentially deadly disease.
Allowing weather conditions, six other counties south and east of Lansing will also be sprayed, the Michigan Department of Health and Humanitarian Services (MDHHS) said in a press release.
The planned sprays will take place in Allegan, Barry, Kent, Montcalm, Muskegon, Newaygo and Oceana counties. Areas in Calhoun, Jackson, Livingston and Auckland counties can also be sprayed.
The announcement came after the total number of EEE cases in animals in Michigan reached 32. Thirty were identified in horses and two in deer. EEE is a potentially fatal disease that occurs in animals and humans and is transmitted by mosquitoes.
A human case has been identified in the county of Bari.
An EEE vaccine is available for horses, but not for humans. Last year, 10 people in Michigan were infected and six died from the virus, which has a 33 percent death rate from people who become ill, according to MDHHS. People under the age of 15 and over the age of 50 are at the highest risk of serious illness after infection.
Symptoms of EEE include fever, chills and pain in the body and joints. This can progress to severe encephalitis, leading to headaches, disorientation, tremors, seizures and paralysis.
Last year, the state health department proposed air spraying, but they met with civil resistance. The air spraying round on Monday comes a week after spraying 10 Michigan counties.
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