Symptoms

Symptoms of yersiniosis can vary depending on the age of the person infected. In young children, common symptoms are fever, abdominal pain, and diarrhea, which is often bloody. Symptoms typically develop 4 to 7 days after exposure and may last 1 to 3 weeks or longer. Symptoms in older children and adults may include fever and pain on the right side of the abdomen, and may be confused with appendicitis. Complications are rare and can include skin rash, joint pains, or spread of bacteria to the bloodstream.