Outbreaks | Equine Disease Communication Center

Updates on current disease outbreaks are listed here as they occur and will include the date listed, disease name, location and current status. Specific premises will not be named but the general location by town, county and state will be listed. When locations, events or horses are at risk they will be listed. Updates will be posted as they are received.

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Eastern Equine Encephalitis

Oconto, Oneida, Shawano Counties, WI

Alert ID: 1846

October 07, 2020

Source: Wisconsin Department of Agriculture, Trade and Consumer Protection

Oconto County

Number Confirmed: 1;
Age: 1; Gender: Gelding; Breed: Quarter Horse (QH); Onset of Clinical Signs: 9/19/2020;
Clinical Signs: anorexia, Ataxia, Depression, Fever, Grinding Teeth, Muscle Fasciculations of head and neck, Reluctant to move, L facial paralysis, aniscoria, no pupillary reflex; Horse Status: Euthanized; Vaccination Status: Undervaccinated;
Notes: 21st confirmed equine EEE case in WI for 2020. First confirmed case in Oconto County. ;

Oneida County

Number Confirmed: 1;
Age: 14; Gender: Mare; Breed: Quarter Horse (QH); Onset of Clinical Signs: 9/22/2020;
Clinical Signs: Anisocoria, Facial twitching, Recumbency, slow papillary reflex; Confirmation Date: 9/30/2020; Horse Status: Euthanized; Vaccination Status: Unvaccinated;
Notes: 22nd confirmed equine EEE case in WI for 2020. Second confirmed case in Oneida County. ;

Shawano County

Number Confirmed: 1;
Age: 10; Gender: Mare; Breed: Standardbred; Onset of Clinical Signs: 9/24/2020;
Clinical Signs: Ataxia, Dullness, leaning to left, Recumbency, unable to move right; Confirmation Date: 10/2/2020; Horse Status: Deceased; Vaccination Status: Unvaccinated;
Notes: 23rd confirmed equine EEE case in WI for 2020. First confirmed case in Shawano County.;

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