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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.


Date Disease Location Status
July 22, 2016 Strangles Marion County, FL Confirmed case(s): Quarantine
On July 21, one premise in Marion County, Florida was placed under quarantine for strangles. The owner recently purchased the horse in Tennessee. The horse became clinical one day after arriving in Florida on July 15. No animals have left the facility since clinical signs began. This is the third case in Marion County and the 18th case for Florida in 2016
July 21, 2016 Eastern Equine Encephalitis Washington County, FL Confirmed Case(s): No Quarantine
On July 20, a new EEE case was confirmed in Washington County, Florida. The adult pony had no known vaccine history and no recent travel history. Clinical signs began on July 9 and the horse was euthanized for humane reasons the same day. This is the second confirmed EEE case in Washington County and case 13 in Florida for 2016.
July 15, 2016 Eastern Equine Encephalitis Berkley County, SC Confirmed Case(s): No Quarantine
The State Veterinarian’s office received laboratory confirmation of another new equine case of EEE on 7/15/16. A five-year-old Mustang mare located in Berkley County was confirmed today. This horse was unvaccinated and did not survive. This is the first confirmed case in Berkley County this year. The total number of confirmed cases in SC in 2016 is now 9.
July 15, 2016 Eastern Equine Encephalitis Jackson County, FL Confirmed Case(s): No Quarantine
On July 15, a new EEE case was confirmed in Jackson County, Florida. The 8 year old mustang mare had no known vaccine history and no recent travel history. Clinical signs began on July 6 and the horse was euthanized for humane reasons the following day. This is the first confirmed EEE case in Jackson County and the twelfth confirmed case in Florida for 2016.
July 12, 2016 Eastern Equine Encephalitis Dorchester, Kershaw, and Horry Counties, SC Confirmed Case(s): No Quarantine
Three additional EEE cases in South Carolina as of 7/12/16. The State Veterinarian’s office received laboratory confirmation of three new case of EEE as of 7/12/16. #1 was a TWH located in Dorchester County, #2 was a 13 year old pony located in Horry County and #3 was a 2 year old QH located in Kershaw County. These cases are the first cases in Dorchester and Kershaw counties and the third case in Horry County. None of the 3 horses survived. The total number of confirmed cases in SC in 2016 is now 8.
July 12, 2016 Eastern Equine Encephalitis Suffolk , VA Information Only
The Virginia Department of Agriculture and Consumer Services (VDACS) today announced the second case of Eastern Equine Encephalitis (EEE) in a Virginia horse this year. The horse, a thoroughbred, was from Suffolk. The horse had been vaccinated and is recovering. Without vaccination the mortality rate is 80 to 90 percent. VDACS received confirmation of the diagnosis from the National Veterinary Services Laboratory in Ames, Iowa on July 8. Virginia also has had one other case of EEE this year, also from Suffolk. In this part of the state veterinarians usually recommend a six-month vaccination interval. For more information, horse owners should contact VDACS’ Office of the State Veterinarian at 804.692.0601 or consult their local veterinarian.
July 06, 2016 West Nile Virus San Diego County, CA Information Only
The first case of equine WNV has been confirmed for 2016 in California. A thoroughbred mare met case definition with neurologic signs and a positive IgM Capture ELISA test for West Nile Virus. The positive horse is located in San Diego County. The unvaccinated five (5) year-old mare is alive and recovering slowly. CDFA continually monitors and investigates equine neurologic cases for the presence of WNV in California. For more information go to https://www.cdfa.ca.gov/ahfss/animal_health/WNV_Info.html
July 05, 2016 Eastern Equine Encephalitis Jefferson County, FL Information Only
On July 5, a new EEE case was confirmed in Jefferson County, Florida. The 1 year old colt had received one previous vaccine against EEE and had no recent travel history. Clinical signs began on June 24 and the horse was euthanized for humane reasons the following day. This is the second confirmed EEE case in Jefferson County and the eleventh confirmed case in Florida for 2016.
July 03, 2016 Eastern Equine Encephalitis Pitt County, NC Information Only
A Pitt County quarter horse has been confirmed as having died after contracting Eastern Equine Encephalomyelitis. The horse exhibited signs of generalized weakness, stumbling, depression and inability to stand or eat. This is the first reported case of EEE in North Carolina this year. Go To http://www.ncagr.gov/paffairs/release/2016/7-16-state-sees-first-EEE-case-of-2016.htm
July 01, 2016 Eastern Equine Encephalitis Colleton County, SC Information Only
The State Veterinarian’s office received laboratory confirmation of one new case of EEE during the week of 7/1/16. The horse was located in Colleton County and is the second case confirmed in that county already this year. The total number of confirmed cases in SC in 2016 is now 5. This is a significant number of cases for the end of June and indicates that this may be a higher than normal risk of infection year.