Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Meningitis ?
    ### Response:
    Meningitis is inflammation of the thin tissue that surrounds the brain and spinal cord, called the meninges. There are several types of meningitis. The most common is viral meningitis, which you get when a virus enters the body through the nose or mouth and travels to the brain.
    