Equine Protozoal Myeloencephalitis (EPM) is a serious neurological disease caused by protozoa, most commonly Sarcocystis neurona, and transmitted through contaminated feed, forage, or water. While it’s estimated that over 50% of horses are exposed to these pathogens, less than 1% actually develop clinical disease. EPM can cause a range of symptoms, including: 🔹 Lack of coordination (often worse on one side) 🔹 Lameness or weakness 🔹 Muscle loss 🔹 Drooping facial features Stress and weakened i

What is EPM in horses?🐴 | Katie Van Slyke

Equine Protozoal Myeloencephalitis (EPM) is one of the most important neurological diseases of horses in North America. It’s caused by infection of the central nervous system by protozoal pathogen Sarcocystis neurona, and to a lesser extent, Neospora hughesi. Horses with EPM can present with a variety of clinical signs, which can make identifying cases difficult. Some of the most common clinical signs include incoordination, weakness, and asymmetrical muscle atrophy (uneven muscle loss). While m