Thanks for the link teabiscuit, yes it is very nasty and only picked up in the states as we don't have the carrier animals in this country.
So can only affect animals that have come from the US.
Am just trying to find out if anyone over here has experience of it. It's a longshot I know. But kinda glad no-one else has experience
Yeah, it's not a walk in the park for horses that develop symptoms, but can be successfully treated. We had it present in California, where the possums would wander around at night by the fields. The tricky part is that neurological symptoms can develop really quickly or incredibly slowly, and seem very non-specific when they start (mild ataxia, apparent change in "personality", etc). A dramatic onset can sometimes be easier to spot than a subtle problem which develops over time, though it leaves you with much less time to figure things out, and permanent damage may be sustained even if the cause is resolved. Does it exist in the U.K.?
Not a silly question, but it is a different thing altogether.
EPM is Equine Protozoal Myeloencephalitis caused by a protozoal parasite which migrates into the nervous system. Horses kept in areas populated by opossums can be exposed by ingesting sporocysts in the droppings of the opossums. It's not contagious between horses, who are sort of a "dead end" host, and I'm pretty sure you don't get it here in the U.K.
We have a mare at work with this. She was a Grade 1 winner in the US and was imported with this dormant in her system. She is not easy to manage, but she still manages to breed and raise her foals. If ever it became too much for her, she would be retired/PTS.
You must know of the racemare Starine? She succumbed to EPM.