California Quarter Horse Positive for Strangles

The horse lives at a stable in Los Angeles County.
A Quarter Horse gelding at a stable in Los Angeles County, California, is positive for strangles and under quarantine.
A Quarter Horse gelding at a stable in Los Angeles County, California, is positive for strangles and under quarantine. | Wikimedia Commons

On March 4, a 17-year-old Quarter Horse gelding at a stable in Los Angeles County, California, was confirmed positive for strangles. The horse developed clinical signs on February 28, including fever, inappetence, and lethargy. He is now recovering and is under voluntary quarantine. 

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
SHARE THIS STORY
CATEGORIES
TAGS
RELATED ARTICLES
Spokane-County-WA
Strangles Confirmed at Washington Boarding Facility
Marion-County-FL-1
Florida Horse Tests Positive for EEE
Florida-4-Counties
Strangles Confirmed in 4 Florida Counties
Ontario_WellingtonCounty_Wiki
Ontario Thoroughbred Positive for Strangles
EDCC HEALTH ALERTS
Don’t miss an important EDCC Health Alert! Get alerts delivered straight to your inbox by signing up for Practical Horseman’s newsletter.

"*" indicates required fields

Name*
Country*

Additional Offers

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