Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Cholera ?
    ### Response:
    Cholera is a bacterial infection that causes diarrhea. The cholera bacterium is usually found in water or food contaminated by feces (poop). Cholera is rare in the US. You may get it if you travel to parts of the world with inadequate water treatment and poor sanitation, and lack of sewage treatment.
    