Below is an instruction from Human. Write a response.
    ### Instruction:
    How to diagnose Creutzfeldt-Jakob disease ?
    ### Response:
    How is Creutzfeldt-Jakob disease diagnosed? There is currently no single diagnostic test for Creutzfeldt-Jakob disease (CJD). When a doctor suspects CJD, the first concern is to rule out treatable forms of dementia such as encephalitis (inflammation of the brain) or chronic meningitis.
    