Strangles Cases Detected: Important Information for Horse Owners

[Wandering Eyes]

Horse owners are urged to stay alert following the recent detection of Strangles cases in the South Island.

While these cases are not linked to the racing community, Strangles is a highly contagious bacterial disease, and vigilance is key to protecting equine health.

We encourage all horse owners to take proactive biosecurity measures, monitor their horses for any signs of illness, and follow best practices to prevent the spread of infection. Early detection and responsible management are crucial in keeping our equine communities safe.

What is Strangles?

Strangles is a bacterial infection caused by Streptococcus equi that primarily affects the upper respiratory tract in horses. It is highly contagious and spreads rapidly through:

· Direct Contact: Nose-to-nose interaction between horses.

· Indirect Contact: Shared equipment, contaminated water buckets, feed troughs, and tack.

· Environmental Contamination: The bacteria can survive in the environment for days to weeks under favourable conditions, increasing the risk of indirect transmission.

While most horses recover with proper care, the infection can lead to serious complications such as abscess formation in other parts of the body (“bastard strangles”), prolonged illness, or in rare cases, death. Early detection and prompt management are critical to minimise its spread and impact.

Symptoms to Watch For:

· Fever: Temperature above 38.5°C

· Nasal Discharge: Thick, pus-like discharge

· Swelling/Abscesses: Around the head and neck (lymph nodes)

· Cough: Difficulty eating or reduced appetite

· Breathing Issues: Respiratory noise or laboured breathing

How to Protect Your Horse:

1. Vaccinate: The Strangles vaccine can help prevent infection or reduce symptoms.

2. Limit Contact: Avoid direct contact and shared equipment with infected horses.

3. Stay Put: Do not move horses to or from affected yards.

4. Travel Caution: Assess the risks of transport, particularly if your horse is unvaccinated.

If your horse shows any symptoms, isolate them immediately and contact your veterinarian for testing and guidance.

Please click here for more information from the New Zealand Equine Research Foundation. 

Being vigilant will help protect our horses and limit the spread of Strangles.

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