Which of the following statements are true regarding pathogens? Check all that apply.

Influenza can cause symptoms such as nausea, vomiting, or diarrhea, particularly in children, so statement A is true. Viruses cannot reproduce by themselves; they must use a host cell to make more viruses, so statement C is true. Pathogens do not affect everyone equally, and fungi are organisms such as yeasts and molds—not large, stonelike organisms.

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