Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Parasites - Babesiosis ?
    ### Response:
    Babesiosis is caused by microscopic parasites that infect red blood cells. Most human cases of Babesia infection in the United States are caused by the parasite Babesia microti. Occasional cases caused by other species (types) of Babesia have been detected.
    