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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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Weld County, CO
Alert ID: 1289
July 06, 2019

Colorado Department of Agriculture

Notes: On July 3rd, the National Veterinary Services Laboratory reported positive test results for Vesicular Stomatitis Virus (VSV) on samples submitted from two horses in Weld County. The two horses reside on separate locations in Weld County and have been placed under quarantine. The initial Colorado disease investigation was completed by a field veterinarian from the State Veterinarian’s Office at the Colorado Department of Agriculture. Both premises in Colorado are private residences with horses as the only livestock species present. The index premises has 1 of 2 horses presenting with lesions on the sheath and no history of recent movements on or off the premises. The subsequent positive premises has 1 of 3 horses presenting with lip and tongue lesions with a history of only pleasure riding nearby the premises 2 weeks prior and no other recent movements. There are no additional animals at either location currently showing clinical signs of VS. Both premises are under state quarantine and will remain so until at least 14 days from the onset of lesions in the last affected animal on the premises.  For more info go to: https://aaep.org/sites/default/files/Guidelines/VesicularStomatitis_Final.pdf