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- EHM Outbreak Count Update (12 5 update) | Equine Disease Communication . . .
Equine Herpesvirus Myeloencephalopathy (EHM) Outbreak The Equine Disease Communication Center is monitoring an outbreak of EHM that originated at the Women’s Professional Rodeo Association (WPRA) World Finals and Elite Barrel Race event Nov 5-9 To date, officially confirmed cases have been reported in the following states:
- EHV-1 EHM | School of Veterinary Medicine
What is equine herpesvirus myeloencephalopathy? Equine herpesvirus-1 (EHV-1) is one of a large group of DNA viruses that causes potentially serious disease in horses and other species EHV-1 has four forms, causing respiratory infection, neonatal infection, abortion, or neurological signs
- Equine Herpesvirus (EHV-1 EHV-4): What horse owners need to know
Equine herpesviruses (EHV) are widespread among horse populations, with EHV-1 and EHV-4 being the most clinically significant EHV-1 can cause respiratory illness, abortion in mares, and a severe neurologic condition called equine herpesvirus myeloencephalopathy (EHM) EHV-4 primarily causes respiratory disease and rarely leads to abortion or neurologic signs Most horses are exposed early in
- Horse Virus Outbreak Across Multiple States: Inside the 2025 EHV-1 . . .
The 2025 horse virus outbreak has grown much faster than anyone expected It began with a group of sick horses after the WPRA World Finals Elite Barrel Race in Waco, Texas What looked like a small cluster has now become a multi-state equine health crisis Cases of EHV-1 and the neurologic form, EHM, have been confirmed across the country
- Equine Herpesvirus 1 (EHV-1) | UA Cooperative Extension
Prognosis Although infection with EHV-1 is lifelong, most horses make a full clinical recovery from the respiratory form in 1-2 weeks Horses with EHM may take longer to recover and neurological signs may never fully resolve Mortality rates for horses with EHM can range from 15-30%
- Disease Alert: Equine Herpesvirus
EHV-1 primarily causes upper respiratory disease and abortions stillbirths in horses In some cases, it causes a neurological disease called equine herpes myeloencephalopathy (EHM) that can be fatal
- Equine Herpesvirus Myeloencephalopathy (EHM) - Merck Animal Health USA
Equine Herpesvirus Myeloencephalopathy (EHM) is a neurologic disease associated with equine herpesvirus type 1 (EHV-1) infection EHM is highly contagious and life-threatening Neurologic signs result from inflammation of the blood vessels, blood clots, and death of neurologic tissue
- Equine Herpesvirus-1 (EHV-1) and Equine Herpesvirus Myeloencephalopathy . . .
The neurologic form, known as equine herpesvirus myeloencephalopathy (EHM), can lead to severe brain and spinal cord damage, causing symptoms like ataxia (incoordination), difficulty standing, and even death
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