Ontario Warmblood Positive for Strangles
An 18-month-old warmblood filly in Simcoe County, Ontario, tested positive for strangles while at an equine hospital being treated for colic.
An 18-month-old warmblood filly in Simcoe County, Ontario, tested positive for strangles while at an equine hospital being treated for colic. Wikimedia Commons

On February 27, an 18-month-old warmblood filly was referred to a veterinary hospital for treatment of impaction colic. While at the hospital, the filly developed a fever, enlarged lymph nodes, a cough and nasal discharge. Guttural pouch samples were positive for S. equi on bacterial culture.

The hospital swiftly implemented infection control procedures. Based on the timing of the clinical signs, the infection was suspected to have occurred at the filly’s home farm. There is no history of strangles at the farm, but further investigation is underway. The farm owner has voluntarily implemented movement restrictions on the farm. The filly is now recovering.

EDCC Health Watch is an Equine Network marketing program that utilizes information from the Equine Disease Communication Center (EDCC) to create and disseminate verified equine disease reports. The EDCC is an independent nonprofit organization that is supported by industry donations in order to provide open access to infectious disease information.

About Strangles

Strangles in horses is an infection caused by Streptococcus equi subspecies equi and spread through direct contact with other equids or contaminated surfaces. Horses that aren’t showing clinical signs can harbor and spread the bacteria, and recovered horses remain contagious for at least six weeks, with the potential to cause outbreaks long-term.

Infected horses can exhibit a variety of clinical signs:

  • Fever
  • Swollen and/or abscessed lymph nodes
  • Nasal discharge
  • Coughing or wheezing
  • Muscle swelling
  • Difficulty swallowing

Veterinarians diagnose horses using polymerase chain reaction (PCR) testing with either a nasal swab, wash, or an abscess sample, and they treat most cases based on clinical signs, implementing antibiotics for severe cases. Overuse of antibiotics can prevent an infected horse from developing immunity. Most horses make a full recovery in three to four weeks.

A vaccine is available but not always effective. Biosecurity measures of quarantining new horses at a facility and maintaining high standards of hygiene and disinfecting surfaces can help lower the risk of outbreak or contain one when it occurs.

Brought to you by Boehringer Ingelheim, The Art of the Horse

categories
tags
Trending Articles
Yearling filly on pasture
Disease Du Jour: OCD in Horses 
Farrier at the hoof care on the horse
AAEP Health Coverage: Barefoot Methodology
Confident female vet standing by horse in stable
How Equine Veterinarians Can Avoid Mental Traps 
Female Vet With Digital Tablet Examining Horse In Stable
AAEP Business Coverage: Equine Financial Statement Benchmarks 
Newsletter
Don’t miss an important EDCC Health Alert! Get alerts delivered straight to your inbox by signing up for EquiManagement’s newsletter.

"*" indicates required fields

Name*
Country*

Additional Offers

Untitled
This field is for validation purposes and should be left unchanged.