🦠microbiology review

HUS

Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025

Definition

Hemolytic Uremic Syndrome (HUS) is a condition characterized by the destruction of red blood cells, leading to kidney failure. It is often caused by infection with Shiga toxin-producing bacteria, such as Escherichia coli O157:H7.

5 Must Know Facts For Your Next Test

  1. HUS commonly occurs after an infection with Shiga toxin-producing E. coli (STEC), which is often contracted through contaminated food or water.
  2. The primary symptoms of HUS include hemolytic anemia, acute kidney injury, and thrombocytopenia.
  3. Children under the age of 5 are at a higher risk of developing HUS following STEC infections.
  4. Treatment for HUS typically involves supportive care, including hydration and dialysis if needed; antibiotics are generally not recommended as they can worsen the condition.
  5. Early diagnosis and management are crucial to prevent long-term complications such as chronic kidney disease.

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