11/19/2025
Iron Horse Family!!
By now, you’ve seen the posts regarding the EHV outbreak in multiple states, largely stemming from a barrel horse event.
We don’t condone or pander fear with a public health epidemic, but we absolutely want to express the gravity of this situation. EHV outbreaks, and those leading to the development of EHM, are deadly and disastrous.
We know big events are happening soon, and many are preparing for them… If you have concerns about possible transmission: STAY HOME. If your horse has potentially encountered other horses, please thoroughly cross reference locations and status, and quarantine your horses immediately. Prevention of spread with this disease is critical—and challenging.
We are with you every step of the way, and are committed to helping you navigate these waters as the anxiety rises and hauling dates get closer. Do not hesitate to contact us asking for advice or to make plans moving forward.
What is Equine Herpesvirus (EHV)?
You've probably heard it called Rhinopneumonitis, a respiratory tract disease that results in "snotty noses," but EHV is more than that. Depending on the strain, this virus can also cause abortion in broodmares, and equine herpesvirus myeloencephalopathy (EHM) — the often-deadly neurologic form of the disease.
Because EHV is endemic in many equine populations, most mature horses have developed some immunity through repeated natural infection. However, they remain a source of infection for other susceptible horses, like weaned foals and yearlings, who usually display symptoms of the respiratory form of the disease in autumn and winter. Performance and show horses are also more vulnerable to the disease, as they commingle with unfamiliar equines in close quarters while under stress from travel and competition.
Proper biosecurity protocols can help reduce EHV outbreaks and other disease transmission. A variety of vaccines are also available for protection against both the respiratory and abortive form of the disease, but there is no equine licensed vaccine at this time that has a label claim for protection against the neurologic form (EHM).
Consult your primary equine veterinarian to learn more about this disease and work with them to determine the optimal vaccine protocol for your horses.
You can learn more about all three forms on the Equine Disease Communication Center's website here: https://equinediseasecc.org/infectious-diseases