Originally Posted by Aesthetic
Currently the mare and her owner are at a vet. She hasn't rode her at all this week. At first they thought the mare was colicing, but vet said no, most likely EPM. So i'm not sure if they caught it early or not. Within a week?
In many of infected horses, the protozoa are able to cross the blood-brain barrier, and infect the central nervous system (CNS). They live inside of cells in the CNS, and are not detected by the immune syste. Stressful events such as injury, extensive trailering, show schedule, pregnancy, or poor nutrition can suppress the immune system allowing the infection to flourish. As the protozoa reproduce, they break out of the host cell, and spread to other areas in the brain or spinal column. Protozoa activities cause lesions to form in the CNS creating the visible neurological symptoms. Researchers cite the incubation period of EPM as weeks to two years, until outward symptoms appear.
The sooner the disease is diagnosed and treated, the better the prognosis. Left untreated, the symptoms generally progress until the horse is recumbent, and most untreated cases end in death.
--the way that's worded makes it sound like EPM can lay dormant inside the horses body and strenuous things can bring it out?
I think the most important thing is that its caught before it gets to the point of the protozoa reaching the brain and destroying motor skills.