How Do Horses Get EPM?
Q: How do horses get equine protozoal myeloencephalitis (EPM), and what is the best way to prevent it?

—Emilee

A: The main protozoan that causes EPM, Sarcocystis neurona, is found in the scat of some opossums. The horse eats feed (hay or grain/concentrates) that is contaminated with S. neurona from opossum feces, and the protozoa gains entrance into the horse’s blood through the intestinal tract. (The protozoan Neospora hughesi also causes EPM, but the definitive host is not known).

console.log('scenario 2');

Create a free account with TheHorse.com to view this content.

TheHorse.com is home to thousands of free articles about horse health care. In order to access some of our exclusive free content, you must be signed into TheHorse.com. Start your free account today!

Sign UpAlready have an account?