Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Baylisascaris infection ?
    ### Response:
    Baylisascaris roundworms are intestinal parasites found in many different animals. Baylisascaris infection in humans is uncommon but can be severe. While Baylisascaris can infect different types of animals, Baylisascaris procyonis, carried by raccoons, is thought to pose the greatest risk to humans because raccoons often live in close proximity to humans.
    