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Equine Protozoal Myeloencephalitis (EPM)
(Opossum Disease)

EPM mimics many other neurological conditions. However, the neurological symptoms associated with EPM can include the following:

  • Lameness or weakness
  • A lack of coordination and difficulty in moving
  • A loss of balance
  • Seizures

Accurate diagnosis of EPM is difficult because of the numerous similarities to other neurological conditions. The primary parasite that causes the disease is a single-celled protozoan organism, Sarcocystis Neurona.

In addtion, because of IFA (immunofluorescence assay) cross-reactivity, blood tests by IFA have limited values for diagnosis. A more accurate alternative is the cerebrospinal fluid (CSF) western blot test. However, it is very expensive, and collecting a sample exposes the patient and the veterinarian to unnecessary risks.

For more information on how our Karbo and Epic II CL products may enhance the immune systems and promote your animal’s or bird's overall health, please call us at 608.617.9626 or email us at [email protected]