Potomac Horse Fever - contd.
Horses that are treated successively and recover from the infection have a good prognosis for recovery. The prognosis is poor for horses infected with PHF that develop laminitis, which occurs three to five days after the onset of diarrhea and may so reduce the quality of a horse's life that euthanasia is elected. The prognosis also is very poor for untreated horses, which often die due to dehydration.
