Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Carbon Monoxide Poisoning ?
    ### Response:
    Carbon monoxide (CO) is a gas that has no odor or color. But it is very dangerous. It can cause sudden illness and death. CO is found in combustion fumes, such as those made by cars and trucks, lanterns, stoves, gas ranges and heating systems. CO from these fumes can build up in places that don't have a good flow of fresh air.
    