I need some information on EPM or the equine opossum disease (symptoms, etc.).

Equine Protozoal Myeloencephalitis (EPM) is a debilitating neurologic disease of horses. It can affect the brain, brainstem, spinal cord or any combination of these three areas of the central nervous system (CNS). The disease may present itself with a variety of different clinical signs, dependent on the location of the damage caused by the organism within the CNS. There is no vaccine currently available.

Life Cycle: The organism causing EPM was given the name Sarcocystis neurona. The horse is a …