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Disease Outbreak 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.


April 20, 2018
Equine Herpes Viruses
Orange County, CA
Outbreak Update
Source: California Department of Food and Agriculture.

The California Department of Food and Agriculture confirmed two new cases of EHV-1 in the previously quarantined barn in Orange County on April 18th, 2018. A mare displayed a fever the morning of April 17,2018 and a horse which was febrile for one day on Sunday, April 8th. Both horses have been placed in separate quarantine isolation stabling on the property. An additional horse displaying a fever on April 18, 2019 tested negative for Equine Herpesvirus-1. The horse will be retested to confirm negative status. Exposed horses under quarantine continue to be monitored with twice daily temperature recordings. CDFA staff continues to be onsite to monitor the situation. For more information go tohttps://www.cdfa.ca.gov/ahfss/animal_health/equine_herpes_virus.html

April 20, 2018
Equine Herpes Viruses
Cherokee County, GA
Confirmed case(s): Official Quarantine
Source: Georgia Department of Agriculture

On April 17, 2018, the Georgia Department of Agriculture (GDA) confirmed EHV-1 in a miniature mule exhibiting respiratory signs in Cherokee County. GDA has placed the facility under quarantine. The mule died due to complications related to pneumonia. Other equids that may have come into contact with the affected mule are being monitored and are currently not showing clinical signs of the disease.

April 20, 2018
Equine Herpes Viruses
Weld County, CO
Confirmed case(s): Official Quarantine
Source: Colorado State Veterinarian’s Office

On April 18, 2018, the Colorado State Veterinarian’s Office confirmed Equine Herpesvirus Myeloencephalopathy (EHM) in a horse exhibiting neurological clinical signs in Weld County. The Colorado Department of Agriculture has placed the facility under quarantine, and facility management has voluntarily suspended all activities at the premises. The horse is undergoing treatment and is recovering. Other horses that may have come into contact with the affected horse are being monitored and are currently not showing clinical signs of the disease.

April 19, 2018
Equine Herpes Viruses
Washtenaw County, MI
Outbreak Update
Source: Michigan Department of Agriculture and Rural Development

On March 27, the Michigan Department of Agriculture and Rural Development confirmed its first case of equine herpesvirus myeloencephalopathy (EHM) for 2018 in a five-year-old Standardbred gelding from Washtenaw County. The horse was immediately quarantined off-site and 16 horses other horses were quarantined where the horse had originated. The 16 horses were monitored twice a day for fevers and sign of herpesvirus, starting the day the EHM positive horse was removed from the premises. As of April 17, the other 16 horses have had 21 consecutive days without the presence of fevers or clinical signs and have been released from quarantine. The EHM positive horse is currently recovering and being quarantined at a separate premises where there are no equine within 30 feet of the property.

April 18, 2018
Equine Herpes Viruses
Kennett Square, PA
Quarantine Released
Source: Pennsylvania Department of Agriculture

 

On April 17, 2018, the Pennsylvania Department of Agriculture Bureau of Animal Health and Diagnostic Services revoked the quarantine related to an EHM case at a boarding stable in Kennett Square, Chester County, PA. 

April 17, 2018
Strangles
Nassau County, FL
Confirmed case(s): Official Quarantine
Source: Florida Department of Agriculture and Consumer Services
The Florida Department of Agriculture has confimed that on April 17, one premises in Nassau County, Florida was placed under quarantine for clinical signs and a positive PCR test result for Strangles. One of the 13 horses on the property is showing clinical signs at this time. This is the first Strangles quarantine for Nassau County and the 23rd in the state of Florida in 2018.  
April 17, 2018
Eastern Equine Encephalitis
Hamilton County, FL
Confirmed Case(s): No Quarantine
Source: Florida Department of Agriculture and Consumer Services

The Florida Department of Agriculture has reported that on April 4, one horse in Hamilton County, Florida tested positive for Eastern Equine Encephalitis (EEE). The unvaccinated 17 year old Welsh Pony became clinical on April 3 and was humanely euthanized on April 4 due to a poor prognosis.

April 16, 2018
Equine Infectious Anemia
Polk County, IA
Confirmed case(s): Official Quarantine
Source: Iowa Department of Agriculture

The Iowa Department of Agriculture (IDALS) officials confirmed Equine Infectious Anemia (EIA) in two Polk County horses. The positive horses have been euthanized and the premises will remain under quarantine until requirements for release have been met. 

April 14, 2018
Equine Herpes Viruses
Orange County, CA
Confirmed case(s): Official Quarantine
Source: California Department of Food and Agriculture

On April 13, 2018, the California Department of Food and Agriculture (CDFA) confirmed equine herpesvirus myeloencephalopathy in a 17 year old Thoroughbred gelding, originating from an Orange County facility. The gelding was displaying neurologic signs and has been isolated offsite and placed under quarantine. Exposed horses will be monitored for clinical signs and temperatures will be taken twice daily. Any horse displaying a fever or compatible clinical signs will be tested. CDFA staff is onsite and will continue to monitor the situation.

April 13, 2018
Strangles
St. Johns, Okeechobee, Volusia Counties, FL
Confirmed case(s): Official Quarantine
Source: Florida Department of Agriculture and Consumer Services

The Florida Department of Agriculture has reported the following cases of Strangles in April 2018. On April 3, one premise in St. Johns County, Florida was placed under quarantine for clinical signs and a positive PCR of Strangles. The clinical horse is the only horse on the  property. This is the first Strangles quarantine for St. Johns County. On April 6, one premise in Okeechobee County, Florida was placed under quarantine for clinical signs and a positive PCR of Strangles. Two of the three horses on the property are showing clinical signs after recently arriving from a kill pen in Louisiana. This is the first Strangles quarantine for Okeechobee County. On April 12, one premise in Volusia County, Florida was placed under quarantine for clinical signs and a positive PCR of Strangles. One of the two horses on the property is showing clinical signs. This is the second Strangles quarantine in Volusia County and brings the total count of Strangles cases to 22 in the state of Florida in 2018.