Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the symptoms of Creutzfeldt-Jakob disease ?
    ### Response:
    What are the signs and symptoms of Creutzfeldt-Jakob disease? Creutzfeldt-Jakob disease (CJD) is characterized by rapidly progressive dementia. Initially, patients experience problems with muscular coordination; personality changes, including impaired memory, judgment, and thinking; and impaired vision.
    