Air Sampling at Equestrian Events Offers New Tool to Detect Equine Herpesvirus
Researchers at the University of Kentucky’s Martin‑Gatton College of Agriculture, Food and Environment have demonstrated that airborne testing can identify equine herpesvirus (EHV) at large horse gatherings. The study, published in the Equine Veterinary Journal, sampled the air inside temporary stabling facilities at eight international competitions held in Spain and the United States between March and September 2025.
Equine herpesvirus, especially strains EHV‑1 and EHV‑4, is a leading cause of respiratory disease, abortions, and neurologic disorders in horses. Outbreaks at major shows can cripple the sport’s economy and jeopardise animal welfare, prompting a search for rapid, non‑invasive surveillance methods that complement traditional nasal swabs.
The team installed high‑efficiency particulate air (HEPA) samplers that filtered barn air for viral particles, then used quantitative PCR to detect viral DNA. Samples from three events in Spain tested positive for EHV‑1, while no cases were found at the five U.S. venues. Lead author Dr. Emily Hartley said, “Airborne detection gave us a snapshot of viral presence without handling the animals, reducing stress and biosecurity risks.” Phys.org reported the same results, while a separate AP wire release highlighted the potential for real‑time alerts to event veterinarians.
Veterinary epidemiologists welcomed the approach, noting that early detection could trigger targeted quarantine and vaccination strategies before an outbreak spreads. Dr. Luis Ramirez, a herd‑health specialist not involved in the study, warned, “Air sampling is promising, but we need standardized protocols and validation across diverse climates before widescale rollout.”
The researchers plan follow‑up trials at the 2026 World Equestrian Games to refine the method’s sensitivity and to integrate portable detection devices on‑site. Stakeholders, including the International Federation for Equestrian Sports, will watch for guidance on incorporating airborne monitoring into official disease‑control policies.