Hemorrhagic gastroenteritis was diagnosed in 15 dogs on the basis of a
history of acute bloody diarrhea accompanied by profound hemoconcentr
ation (PCV greater-than-or-equal-to 60%). Other laboratory data, inclu
ding results of extensive fecal culturing, was not helpful in establis
hing pathogenesis of the disease. With the exception of hypovolemia, s
erious complications did not develop in any of the dogs. All responded
favorably to supportive care consisting of administration of fluids a
nd antibiotics and restriction of food and water