05/08/2026
STRANGLES SURVEILLANCE
📢 Just sharing this to help make sure everyone knows about it.
Please share so more owners know this surveillance system exists……it only becomes more valuable when suspected cases are investigated and confirmed appropriately.
The UK has a Surveillance of Equine Strangles (SES) network, run through the Equine Infectious Disease Surveillance (EIDS) programme at the University of Cambridge. Rather than relying on rumours or social media posts, it collates laboratory-confirmed cases of strangles submitted by participating UK diagnostic laboratories. This allows disease trends and affected areas to be monitored and helps improve our understanding of how strangles is spreading.
If your horse is suspected of having strangles, horse owners don’t report cases directly. Your veterinary surgeon will examine your horse, arrange appropriate testing if indicated, and samples sent to participating laboratories contribute to the national surveillance programme when Streptococcus equi is confirmed. Veterinary practices can also submit outbreak information to EIDS to help build a clearer national picture of infectious disease.
The latest published figures show:
• 270 laboratory-confirmed cases in 2024
• 477 laboratory-confirmed cases in 2025 (a 77% increase).
It’s worth remembering that these figures represent laboratory-confirmed cases only. Not every horse with suspected strangles is tested, so the true number of cases may be higher.
You can view the UK surveillance information, disease maps and reports here:
🔹 https://equinesurveillance.org/ses/
🔹 https://www.equinesurveillance.org/
The more horses that are appropriately tested and recorded, the better we can understand where strangles is occurring and improve disease control. Good biosecurity, isolating new arrivals, prompt veterinary assessment of suspected cases and appropriate testing all play an important part in reducing the spread of this disease.
Sources:
• Equine Infectious Disease Surveillance (EIDS): https://www.equinesurveillance.org/
• Surveillance of Equine Strangles (SES): https://equinesurveillance.org/ses/
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