Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Foodborne Illnesses ?
    ### Response:
    Foodborne illnesses are infections or irritations of the gastrointestinal (GI) tract caused by food or beverages that contain harmful bacteria, parasites, viruses, or chemicals. The GI tract is a series of hollow organs joined in a long, twisting tube from the mouth to the anus.
    