11/22/2025
As the EHV-1/EHM outbreak affects all of us in the horse community, please stay informed and supportive.
𝐖𝐡𝐚𝐭 𝐢𝐬 𝐄𝐇𝐕-𝟏/𝐄𝐇𝐌?
Equine Herpesvirus-1 is a form of DNA virus that causes a spectrum of symptoms from respiratory to neurological, and can even cause abortion. EHV-1, in its neurological form, can cause Equine Herpesvirus Myoencephalopathy, which attacks the CNS and can be fatal.
𝐇𝐨𝐰 𝐂𝐚𝐧 𝐈 𝐑𝐞𝐝𝐮𝐜𝐞 𝐑𝐢𝐬𝐤?
The most common route of transmission is direct horse-to-horse contact, via respiratory droplets. Indirect transmission is possible by contaminated clothes, tack, grooming supplies, etc.
By restricting horses' movements onto and off your property, and following good biosecurity practices—like washing your hands regularly, avoiding sharing tack and grooming supplies, and limiting contact with horses that aren't under your direct care—you can reduce the risk of disease transmission.
𝐖𝐚𝐭𝐜𝐡 𝐟𝐨𝐫 𝐂𝐥𝐢𝐧𝐢𝐜𝐚𝐥 𝐒𝐢𝐠𝐧𝐬: (𝐧𝐨𝐭 𝐚𝐧 𝐚𝐥𝐥-𝐢𝐧𝐜𝐥𝐮𝐬𝐢𝐯𝐞 𝐥𝐢𝐬𝐭)
Fever ( >101.5 F)
Nasal Discharge
Lethargy
Abortion
Hindlimb Weakness
Dribbling Urine
Ataxia (lack of coordination)
Inability to stand
If you have questions and/or your horse starts showing any of the symptoms of EHV-1/EHM, contact your vet immediately.
𝐋𝐨𝐨𝐤𝐢𝐧𝐠 𝐟𝐨𝐫 𝐌𝐨𝐫𝐞 𝐈𝐧𝐟𝐨𝐫𝐦𝐚𝐭𝐢𝐨𝐧?
EHV-1 & 4 Disease Guidelines:
https://aaep.org/resource/aaep-infectious-disease-guidelines-equine-herpesvirus-1-4/
Latest News/Updates:
https://www.equinediseasecc.org/alertshttps://www.equinediseasecc.org/alerts