The symptoms depend on how serious the infection is. Some people may feel only mild discomfort, while others may get very sick.

Common Symptoms

• Stomach pain and cramps (especially in the lower abdomen).
• Diarrhea (sometimes with blood or mucus).
• Nausea, vomiting, and loss of appetite.
• Fever and extreme tiredness.
• In serious cases: pain in the liver area if it spreads.