Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Antiphospholipid Antibody Syndrome ?
    ### Response:
    Antiphospholipid (AN-te-fos-fo-LIP-id) antibody syndrome (APS) is an autoimmune disorder. Autoimmune disorders occur if the body's immune system makes antibodies that attack and damage tissues or cells.
                
Antibodies are a type of protein. They usually help defend the body against infections.
    