18/05/2026
Equine Influenza Update – Increasing Cases Across the UK
The Equine Infectious Disease Surveillance (EIDS) team has reported a continued rise in equine influenza (EI) outbreaks across the UK during April and early May 2026.
Since early April, 44 laboratory-confirmed outbreaks have been identified across 28 counties nationwide, with additional suspected outbreaks currently under investigation. Recent reports suggest the disease continues to spread geographically, highlighting the importance of maintaining vigilance and robust biosecurity measures.
Horse Movement Remains a Key Risk Factor
Current surveillance data shows that over 60% of affected premises had recently introduced or moved horses prior to the onset of clinical signs. This reinforces the significant role horse movement plays in the spread of equine influenza.
However, it is important to remember that EI is an airborne virus and may spread considerable distances under suitable environmental conditions. This means horses may still be at risk even without direct contact or recent travel history.
Vaccination and Biosecurity 💉
Of the confirmed outbreaks reported so far:
· 21 involved unvaccinated horses
· 6 involved vaccinated horses
· 17 had unknown vaccination status
While vaccination cannot completely prevent infection, vaccinated horses generally experience milder clinical signs, recover more quickly, and are less likely to spread the virus to others.
We strongly encourage owners to ensure vaccinations are fully up to date, particularly for horses travelling, competing, attending clinics or mixing with unfamiliar horses.
Clinical Signs to Watch For 🤧
Please monitor horses carefully for signs including:
· Raised temperature
· Coughing
· Nasal discharge
· Lethargy
· Reduced appetite
· Poor performance
If your horse shows any of these signs, isolate them immediately and contact your veterinary surgeon for advice.
Reducing the Risk on Your Yard
Simple biosecurity measures remain one of the most effective ways to reduce disease spread:
· Isolate new arrivals for 14 days
· Avoid sharing buckets, tack or equipment between horses
· Maintain good hand hygiene for staff and visitors
· Clean and disinfect communal areas regularly
· Monitor temperatures daily in at-risk horses
During periods of increased disease activity, we advise owners and yard managers to carefully assess the necessity of horse movements and gatherings wherever possible.
The team at Perth Equine Vets will continue to monitor the situation closely and provide updates as further information becomes available. If you have any concerns regarding your horse’s respiratory health or vaccination status, please contact us for some advice.
📞01738259427
📧 [email protected]
www.perthequinevets.com
