Breaking News
National Equine Health Stakeholder Call-October 2026
Learn More

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.



1 Week
2 Weeks
1 Month
2 Months
3 Months
3+ Months
No Results

The color range is based off of the selected End Date. If the End Date doesn't have a value it will use Today's Date.

Oregon, United States
Alert ID: 755
November 16, 2017

College of Veterinary Medicine at Oregon State University

The horse affected with Equine Herpesvirus Myeloencephalitis at Oregon State University had a negative nasal swab on November 13, 2017. Because this affected horse is stable and not shedding the virus, it will be released to the owner's private barn this week. There has been no confirmed transmission to any other horses in the veterinary hospital and they will remain in quarantine until November 27, 2017.