Species affected: Dogs, cats
Background: The usual source of infection is contaminated drinking water or via contact with infected fecal material.
Symptoms: Diarrhea, soft "cow patty-like" stool, sometimes bloody stool, and weight loss.
Diagnostics: The single-cell organism or cyst can be detected using a saline smear of fresh fecal material or using special fecal flotation techniques. The diagnostic work-up should rule out any other predisposing factors.
Special Notes: While debilitating, it is rarely fatal and will almost always be self-limiting if supportive care is provided.
Principles for Supplementation: The organism is susceptible to many herbal products; treatment rarely requires heavy medication.