Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Dravet Syndrome ?
    ### Response:
    Dravet syndrome, also called severe myoclonic epilepsy of infancy (SMEI), is a severe form of epilepsy. It appears during the first year of life with frequent febrile seizures  fever-related seizures that, by definition, are rare beyond age 5. Later, other types of seizures typically arise, including myoclonus (involuntary muscle spasms).
    