− | The prognosis is variable according to the severity of clinical signs. Horses that are able to drink may have a good prognosis providing nursing care is available. Recumbent horses carry a grave prognosis with a mortality rate of approximately 80%. Recovered horses may be normal but some may be left with persistent neurological deficits. | + | The prognosis is variable according to the severity of clinical signs. Horses that are able to drink have a good prognosis providing nursing care is available. Recumbent horses carry a grave prognosis with a mortality rate of approximately 80%. Horses that recover may be normal but some may be left with persistent neurological deficits. |