Health authorities in Slovenia have confirmed the presence of equine influenza, a highly contagious viral disease. The outbreak has led to the implementation of additional precautionary measures at sites such as Posestvo Blata, where officials are urging visitors to maintain strict hygiene protocols to protect animal health.
The virus, identified as influenza type A, spreads rapidly among equine populations. Because it can affect multiple animals in a short window of time, authorities are prioritizing the prevention of further transmission through human activity and equipment to limit the spread of the disease.
How the virus spreads and who is most at risk
Equine influenza is primarily an airborne threat. The virus travels via aerosols—small droplets expelled when an infected horse coughs—and through direct contact with secretions, such as nasal discharge. This makes the disease particularly difficult to contain in shared living spaces where horses are in close proximity.
Beyond direct animal-to-animal contact, the virus can survive on the clothing and equipment of people working with infected horses. This means that a person moving from one stable to another can inadvertently act as a vector, carrying the virus on their boots or grooming tools.
While the virus can impact any horse, certain demographics are more vulnerable. Experts note that the disease can be especially dangerous for foals and older horses, as these groups are more likely to experience a more severe course of the illness. For most other horses, the impact varies, though veterinary officials continue to monitor the situation closely to manage the risk of further transmission.
Biosecurity protocols for owners and breeders
The Administration for Food Safety, Veterinary Medicine and Plant Protection (UVHVVR) has called for the rigorous application of biosecurity measures to prevent the virus from escaping control. For breeders and owners, this involves careful management of both animal movement and facility operations.
Key preventative steps include the mandatory quarantine of newly acquired animals and the immediate isolation of any horse showing clinical signs of illness. Infected animals should be moved to a separate area of the stable to minimize contact with the healthy population. Regular cleaning and disinfection of stables, stalls, water troughs, and transport vehicles are also essential.
Personal hygiene for caregivers is equally critical. The Veterinary Administration emphasizes the use of protective clothing and footwear when interacting with animals, including the use of dedicated gear when moving between different stables. Furthermore, owners are advised to restrict the entry of unauthorized persons into animal areas to minimize the risk of introducing the virus.
The Veterinary Administration states that containment requires a joint effort from all stakeholders.
EU regulatory status and the role of vaccination
Interestingly, equine influenza is not currently listed in European Union legislation as a disease requiring mandatory official notification or monitoring at the state or EU level. However, this lack of a formal EU-wide reporting mandate does not exempt owners from legal obligations. Under veterinary legislation regarding animal health and protection, all breeders and owners are required to monitor the health of their animals and immediately notify a veterinarian if clinical signs appear.
To mitigate the risk, authorities highlight the importance of regular vaccination. While vaccines may not always prevent infection entirely, they reduce the likelihood of the occurrence of the disease. For horses that participate in competitions or events—where contact with other animals is frequent—vaccination is considered essential. Even in cases where a vaccinated horse becomes infected, the clinical signs are typically milder.
During an active outbreak, the movement of horses is prohibited. Participation in competitions or events, as well as moving horses into different herds, is restricted because such activities can trigger the uncontrolled spread of the virus across the wider population.
What to watch moving forward
The situation in Slovenia currently centers on localized containment, with sites like Posestvo Blata implementing measures that will remain in place indefinitely to protect their livestock. Authorities continue to emphasize the importance of visitor adherence to hygiene protocols and the vigilance of breeders in reporting new symptoms.
Horse owners should monitor for signs of respiratory distress or nasal discharge and maintain a strict one horse, one set of tools policy for grooming and tack. As the virus continues to be monitored by the UVHVVR, the effectiveness of containment efforts will rely on the consistent application of biosecurity measures across all stables to prevent the further spread of the virus.
