Understanding Strangles: Lessons from the Ontario Outbreak

The recent Strangles outbreak at a boarding facility in Wellington County, Ontario, has brought attention to the critical importance of biosecurity measures. With three horses testing positive for this highly infectious equine disease as of September 2, 2024, equine communities are on high alert. Let’s delve into what Strangles is, its symptoms, prevention, and the broader implications of this outbreak.

What is Strangles?

Strangles is caused by the bacterium Streptococcus equi subspecies equi. This highly contagious disease can spread through direct contact with infected horses or via contaminated surfaces, water, and equipment. The clinical signs of Strangles include:

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

Managing these symptoms is crucial for the recovery and well-being of affected horses.

Diagnosis and Treatment

Diagnosing Strangles involves PCR testing on nasal swabs, washes, or abscess samples. The treatment strategy typically focuses on managing clinical signs rather than using antibiotics, except in severe cases. The judicious use of antibiotics is essential to avoid hindering the development of immunity in infected horses. Fortunately, most horses recover fully within three to four weeks.

Importance of Early Detection

Early detection and isolation are critical to preventing an outbreak from spreading further. The quicker the infection is identified and contained, the easier it becomes to manage its spread.

Biosecurity Measures

The affected boarding facility in Wellington County took immediate action by stopping horse movements on and off the property and implementing stringent biosecurity protocols in collaboration with a veterinarian. Key biosecurity measures include:

  • Quarantining new horses for at least 14 days
  • Maintaining high hygiene standards
  • Regular monitoring of horse health
  • Thorough cleaning and disinfection of surfaces and equipment

Effective biosecurity protocols are vital in containing the outbreak and protecting the equine community.

Preventative Measures

While a vaccine for Strangles exists, its efficacy can vary. Therefore, relying solely on vaccination is not recommended. Preventative measures that have proven effective include quarantining new arrivals, regular health monitoring, and maintaining stringent hygiene practices. These proactive steps greatly reduce the risk of an outbreak.

Role of Community Vigilance

Community vigilance is another key element in preventing the spread of infectious diseases like Strangles. The Equine Disease Communication Center (EDCC) provides verified disease information, alerting the equine community to potential health risks. The recent outbreak highlights the need for facilities and individuals alike to stay informed and proactive.

Long-term Implications

Horses that recover from Strangles can remain contagious for at least six weeks post-recovery. This underlines the need for prolonged biosecurity measures even after recovery. Facilities must be committed to long-term biosecurity practices to ensure the health of their horses and to prevent future outbreaks.

Economic Impact

Outbreaks like these also have significant economic impacts on boarding facilities. Implementing biosecurity measures, managing infected horses, and halting horse movements can be costly and affect the facility’s operations.

Conclusion

The recent Strangles outbreak in Wellington County serves as a stark reminder of the importance of stringent biosecurity measures in equine health management. Understanding the disease, its symptoms, and the essential preventive and treatment measures can significantly reduce outbreak risks. Community vigilance, adherence to veterinary advice, and the implementation of robust biosecurity protocols are indispensable in protecting the equine population.

For more information on equine biosecurity and disease management, visit the Equine Disease Communication Center’s website at https://www.equinediseasecc.org/.

Source: The Horse