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Disease Alerts

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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Multiple Counties listed in Comments, WI
Outbreak Identifier: 5191
Alert ID: 2571
May 04, 2022
Information Only

Wisconsin Department of Agriculture

Notes: • Shawano County: A 24-year-old QH mare tested positive on a PCR test for Equine Influenza Virus. It was also positive for Strep. zoo. The sample was collected on 3/7/2022. There are approximately 5-7 horses affected with respiratory symptoms at the boarding stable of approximately 40 horses. Affected horses are isolated/voluntary quarantine. Some horses at the stable had traveled to shows and competitions. Vaccination status unknown.

• Grant County: Approximately 30 horses at a private farm were showing respiratory symptoms. They were coughing and had a nasal discharge. Some were dyspneic with low-grade fevers.. They were generally not off feed. They had no recent history of travel and there had been no recent new additions or visiting horses. The attending veterinarian sampled two of the most severely affected on 3/22/2022 and they both were PCR positive for Influenza A Virus (H3N8). The horses were not vaccinated for EIV. Voluntary quarantine. Horses are improving.

• Sauk County: A 9-year-old QH gelding was sampled on 3/27/2022 and tested PCR positive for Equine Influenza (H3N8). The horse had been sick for a day with a high fever, lethargy, intermittent cough and nasal and ocular discharge. Four other equines on the premises not showing symptoms. Vaccination status unknown, but unlikely. Voluntary quarantine. Recovered.;