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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.

Alert ID: 1261
May 17, 2019
Chester County, PA
Confirmed case(s): Official Quarantine
Source: Pennsylvania Department of Agriculture

Number Confirmed: 1;
Number Exposed: Not Reported;
Clinical Signs: Neurologic Deficits;Horse Status: Affected And Alive; 
Notes: The horse remains on its home premises, a private equestrian facility in Chester County, Pennsylvania. The premises has been quarantined by the Pennsylvania Department of Agriculture, Bureau of Animal Health. The index case had not left the premises for over three weeks and was placed in strict isolation immediately when clinical signs were recognized. All horses on the premises are being monitored for clinical signs of EHV-1 infection and biosecurity precautions have been implemented to prevent the spread of the virus.

Alert ID: 1260
May 17, 2019
Shelby County, TN
Confirmed case(s): Official Quarantine
Source: Tennessee Department of Agriculture

Number Confirmed: 1;
Number Exposed: Not Reported;
Age: 5; Gender: Gelding; Breed: Quarter Horse (QH); Onset of Clinical Signs: Not Reported;
Clinical Signs: None; Confirmation Date: 5/16/2019; Horse Status: Euthanized; Vaccination Status: Status Unknown;
Notes: This horse was in Tennessee for only two days before the EIA sample was drawn. The horse was isolated in a barn by itself, so there is low risk of exposure to other horses.

Alert ID: 1259
May 16, 2019
Maricopa County, AZ
Outbreak Update
Source: Arizona Department of Agriculture

Number Confirmed: 4

Number Exposed: 13

Age: 12; Gender: Not Reported; Breed: Pony; Onset of Clinical Signs: 5/10/2019;
Clinical Signs: lethargy; Confirmation Date: 5/14/2019; Horse Status: Recovering; Vaccination Status: Vaccinated;

Age: 20; Gender: Not Reported; Breed: Quarter Horse (QH); Onset of Clinical Signs: 5/9/2019;
Clinical Signs: Ataxia, Muscle Fasciculations; Confirmation Date: 5/14/2019; Horse Status: Affected And Alive; Vaccination Status: Undervaccinated;
 

Age: Not Reported; Gender: Not Reported; Breed: Not Reported; Onset of Clinical Signs: 5/10/2019; Clinical Signs: Ataxia; Confirmation Date: 5/14/2019; Horse Status: Affected And Alive; Vaccination Status: Undervaccinated;

Notes: The Arizona Department of Agriculture has released an update on EHV-1 in Maricopa County. Three additional horses have been confirmed positive

 

Alert ID: 1258
May 14, 2019
Fayette County, GA
Quarantine Released
Source: Georgia Department of Agriculture

The Georgia Department of Agriculture’s (GDA) Animal Industry Division has updated information on the case of Equine Infectious Anemia (EIA) discovered in Fayette County in 2019. On April 18, 2019, the Department released the quarantine on one premise in Fayette County after follow up testing revealed no additional cases. There are no EIA-related quarantines in Georgia at this time. 

Alert ID: 1257
May 13, 2019
King County, WA
Confirmed Case(s): Voluntary Quarantine
Source: Washington State Department of Agriculture

Number Confirmed: 5; 18 suspected cases;
Number Exposed: 26;
Age: Not Reported; Gender: Not Reported; Breed: Not Reported; Onset of Clinical Signs: Not Reported;
Notes: Horses arrive on 30 April and symptoms started on 2 May. Confirm on 9 May. 18 head have signs of fever and/or abscesses. Owners stopped movement in and out and instigated biosecurity measures.;

Alert ID: 1256
May 11, 2019
Maricopa County, AZ
Confirmed case(s): Official Quarantine
Source: Arizona Department of Agriculture

Number Confirmed: 1;
Number Exposed: 2;
Age: 23; Gender: Gelding; Breed: Quarter Horse (QH); Onset of Clinical Signs: Not Reported;
Clinical Signs: Neurological Signs; Confirmation Date: 5/7/2019; Horse Status: Affected And Alive; Vaccination Status: Vaccinated;
Notes:  No travel history over the last 4 weeks. Quarantined to residence.

Alert ID: 1255
May 11, 2019
Maricopa County, AZ
Confirmed case(s): Official Quarantine
Source: Arizona Department of Agriculture

Number Confirmed: 1;
Number Exposed: 13;
Age: 5; Gender: Gelding; Breed: Quarter Horse (QH); Onset of Clinical Signs: 5/7/2019;
Clinical Signs: Ataxia, Weakness; Confirmation Date: 5/7/2019; Horse Status: Recovering; Vaccination Status: Unvaccinated;
Notes: Acute onset of neurologic signs. No travel history.

Alert ID: 1254
May 09, 2019
Richland County, SC
Confirmed Case(s): Voluntary Quarantine
Source: Attending Veterinarian

Number Confirmed: 1;
Number Exposed: 9;
Age: 15; Gender: Gelding; Breed: Pony; Onset of Clinical Signs: 3/7/2019;
Clinical Signs: Minimal Mucoid Nasal Discharge; Confirmation Date: 5/2/2019; Horse Status: Recovering; Vaccination Status: Unvaccinated;
Notes: Pony was purchased from a seller in Yadkin County North Carolina (large, 30+ horse facility) on approx 4/13/19. On routine visit to client for vaccines on 4/22/19 patient was BAR, afebrile, no lymph node enlargement, and exhibited no respiratory abnormalities at time of initial exam. Attending DVM was informed of pony's history of apparent respiratory infection including nasal discharge in March 2019, which supposedly affected the majority of the horses at the barn the pony was purchased from in Yadkin County. History prompted testing. Exposed horses on premises treated with 2 injections of Excede and quarantine was initiated on positive individual. Waiting on scoping then 3 negative PCRs 1 week apart before removing quarantine on positive case. Quarantine of exposed and prophylactically treated horses to be lifted end of May.;

Alert ID: 1253
May 08, 2019
Chelan County, WA
Confirmed Case(s): Voluntary Quarantine
Source: Washington State Department of Agriculture

Number Confirmed: 5;
Number Exposed: Not Reported;
Age: 8; Gender: Gelding; Breed: Welsh Pony; Onset of Clinical Signs: 5/2/2019;
Clinical Signs: Nasal Discharge; Confirmation Date: 5/3/2019; Horse Status: Recovering; Vaccination Status: Undervaccinated;
Notes: Vaccination due to exposure. Didn't get booster in time.

Alert ID: 1252
May 08, 2019
Ector and Kimble Counties, TX
Confirmed case(s): Official Quarantine
Source: Texas Animal Health Commission

Location: Ector County

Number Confirmed: 1;
Number Exposed: Not Reported;

Breed: Quarter Horse (QH); Confirmation Date: 4/30/2019;

 

Location: Kimble County

Number Confirmed: 1;
Number Exposed: Not Reported;

Breed: Quarter Horse (QH); Confirmation Date: 4/30/2019;


Notes: On April 30, 2019, Texas Animal Health Commission (TAHC) officials reported Equine Infectious Anemia (EIA) in one Ector County Quarter Horse and one Kimble County Quarter Horse. The premises will remain under quarantine until requirements for release have been met. TAHC staff is working closely with owners and veterinarians to monitor potentially exposed horses and implement biosecurity measures.;