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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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Morris County, NJ
Outbreak Identifier: 4658
Alert ID: 2047
April 23, 2021
Confirmed Case(s) - Official Quarantine

New Jersey Department of Agriculture

Number Confirmed: 2;
Facility Type: Farm;
Age: 17; Gender: Gelding; Breed: Quarter Horse (QH); Onset of Clinical Signs: 4/18/2021;
Horse Status: Recovering;

Age: 20; Gender: Gelding; Breed: Quarter Horse (QH); Onset of Clinical Signs: 4/18/2021;
Horse Status: Recovering;
Notes: A Morris County premises was placed under quarantine after two horses tested positive for equine herpes myeloencephalopathy (EHM) caused by equine herpesvirus-1 (EHV-1). The horses, 17-year-old and 20-year-old Quarter horse geldings developed clinical signs on April 18, 2021. The horses were administered prompt treatment and have improved clinically. There are other horses at the farm that may have been exposed to the positive horse. Immediate biosecurity measures are in effect at the premises and will be in place for the 21-day quarantine. Additionally, all the horses on the quarantined premises will be temperature checked twice daily to confirm that the virus is not spreading. The two infected horses are being isolated from the rest of the herd. The NJDA is tracing and notifying the appropriate parties regarding recent horse movement. ;