Below is an instruction from Human. Write a response.
    ### Instruction:
    How to prevent Heart Valve Disease ?
    ### Response:
    To prevent heart valve disease caused by rheumatic fever, see your doctor if you have signs of a strep infection. These signs include a painful sore throat, fever, and white spots on your tonsils. If you do have a strep infection, be sure to take all medicines prescribed to treat it.
    