HUS stands for Hemolytic Uremic Syndrome, which is a rare but serious disease that affects the kidneys and blood clotting functions of infected people. It occurs when small blood vessels become damaged and inflamed, causing clots to form in the vessels throughout the body. HUS can cause destruction of red blood cells, which can then cause kidney failure. The disease occurs more commonly in children under 5 years of age than in other age groups.

Symptoms of HUS include vomiting, bloody diarrhea, stomach pain, fever, chills, headache, fatigue, weakness, fainting, bruising, and paleness. As the infection progresses, persons may experience complications such as high blood pressure, seizures, blood-clotting problems, kidney disease, stroke, or coma.

HUS cannot be diagnosed with one single test or indicator, but rather a panel of tests and evaluations. These tests and evaluations include a medical and family history, physical exam, urine test, blood test, stool test, and/or kidney biopsy. Treatment for HUS infection typically involves hospitalization, and may include special diets, blood transfusions, and kidney dialysis. Most people recover completely from HUS, but in some cases, it can be fatal.