Opossums can spread equine protozoal myeloencephalitis (EPM) to horses primarily through their feces, which may contain the protozoan parasite Sarcosystis neurona. When horses ingest food or water contaminated with opossum feces, they may become infected with the parasite. The parasite then travels to the horse's central nervous system, leading to neurological issues associated with EPM. Effective management of horse feeding areas and reduction of opossum populations can help mitigate this risk.
mice
mice
Opossoms
Opossums
The carrier in the US is the raccoon.
Oppossums
If by "possums disease" you mean Equine Protozoal Myeloencephalitis, the answer is a few horses will, but these were the minimally affected horses. Severely affected horses (ie, those that are having difficulty walking or standing) generally do not recover fully and many are euthanized for humane reasons when they become infected.
Raccoons are the animal most commonly implicated.
As odd as it sounds horses get the illness from opposoms who get it from birds.
I think you want to know which animal can pass the infection on to the horse. the main one is the opossum
Opossums are the definitive host for Sarcocystis neurona, which is the parasite that causes EPM (equine protozoal myeloencephalitis. The parasite is excreted from opossums in their manure which can then be ingested by the horse while grazing or drinking water.
Muscle tremors in horses can be caused by a variety of factors such as mineral imbalances, electrolyte abnormalities, nerve damage, exertional rhabdomyolysis (tying-up), or certain diseases like equine protozoal myeloencephalitis (EPM). It's important for a veterinarian to assess the horse to determine the underlying cause and appropriate treatment.