Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the symptoms of Q Fever ?
    ### Response:
    Q fever can cause acute or chronic illness in humans, who usually acquire infection after contact with infected animals or exposure to contaminated environments. The acute symptoms caused by infection with Coxiella burnetii usually develop within 2-3 weeks of exposure, although as many as half of humans infected withC.
    