• Less than 6 months old.
• 6 or more unformed stools per day.
• Dizziness upon standing.
• Signs of severe dehydration such as: Has not urinated in 8 hours, has no tears when crying, has lost over 9% of body weight, unconsciousness, bluish coloration of the skin, lips or fingernails.
• Fever over 102.2 F.
• Blood, pus or mucus in stools.
• Severe pain of any kind.
• Recent antibiotic usage.
• Persistent diarrhea (diarrhea happening regularly or that has not responded to an over the counter treatment).
• Excessive vomiting.
• Diabetes.
• Severe cardiovascular disease (uncontrolled health conditions including severe high blood pressure, heart failure, heart arrhythmias, or other conditions of the heart and blood vessels).
• Kidney disease.
• Multiple chronic health conditions.
• A health condition or are taking medications which suppress the immune system (taking medicines such as methotrexate, cyclosporine, cancer drugs, other immunosuppressive drugs).
• Pregnancy.
• Intestinal obstruction or ileus