Below is an instruction from Human. Write a response.
    ### Instruction:
    What causes Hemolytic uremic syndrome ?
    ### Response:
    What causes hemolytic uremic syndrome? Hemolytic uremic syndrome often occurs after a gastrointestinal infections with E. coli bacteria (Escherichia coli 0157:H7). The condition has also been linked to other gastrointestinal infections, including shigella and salmonella, as well as infections outside of the gastrointestinal system.
    