While no EHM cases have been reported in Kansas, state officials have contacted all known Kansas horse owners who attended either event. Those owners have been advised to isolate exposed horses for 14 days and closely monitor for symptoms. The virus’s incubation period can last up to two weeks, meaning a horse may appear healthy while still shedding the virus and potentially infecting others.
EHM is a serious neurologic disease caused by Equine Herpesvirus-1 (EHV-1). It spreads through horse-to-horse contact via nasal discharge or inhaled droplets, and it can also be transmitted through contaminated surfaces including stalls, tack, feed, water sources, and transport trailers. Humans may inadvertently spread the virus through contaminated hands, clothing, and equipment.
- Fever over 101.5°F
- Nasal discharge
- Lethargy
- Hind-end weakness
- Any signs of neurological issues
Animals showing neurological symptoms are considered to be in medical emergency status, and owners are urged to contact a veterinarian immediately.
KDA also reminds Kansans planning to travel with their horses to check current entry requirements for their destination state, as protocols may change quickly during disease outbreaks.
For ongoing updates, the Equine Disease Communication Center has established an online alert page tracking this outbreak and providing educational resources. The page is available at: equinediseasecc.org/alerts?alertID=4722
Horse owners with questions about quarantine guidance or possible EHM exposure can contact the KDA Division of Animal Health at 785-564-6601.
