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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
Waupaca, Langlade, Monroe, Chippewa, Eau Claire, Taylor, Forest Counties, WI
Alert ID: 339
October 05, 2016
Wisconsin has had 7 additional confirmed cases of EEE. All of the horses have been euthanized or died on their own. All are nonvaccinates or under vaccinated. Waupaca County: 8-yr.-old Quarter Horse mare, not vaccinated; staggering and went down vocalizing with its tongue out. Euthanized 9/21/16. Langlade County: 11-yr.-old Quarter Horse mare, not vaccinated this year; became non-ambulatory with a wry neck and was beginning to seizure. Euthanized 9/25/16. ELISA IgM: Positive at 1:400 Monroe County: 2-yr.-old Quarter Horse mare, either nonvaccinated or under vaccinated; head-pressing, lethargic, ataxic. Euthanized 9/18/16. PCR Positive CT Value 24.4 Chippewa County: 1-yr.-old under-vaccinated (no vaccine this year) Thoroughbred filly; initially presented 9/24/16, febrile, depressed, lethargic, weak, nystagmus, seizure-like activity; went down 9/26 and died 9/27. Eau Claire County: 8-yr.-old under-vaccinated (possibly vaccinated 5 yrs. ago) Miniature Horse mare; presented 9/26/16, wobbly, depressed, decreased appetite, circling to left, twitching, and head pressing; went down late 9/28; euthanized 9/29 Taylor County: 13-yr.-old-unvaccinated Percheron mare; symptoms began 9/23/16 (hind limb weakness, stumbling; went down and was euthanized 9/24/16. Forest County: Miniature Horse, Vaccination history unknown This makes 17 confirmed positive equine EEE cases in WI this year
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