The nurse who provides care at a wilderness camp is teaching staff members about measures that reduce campers and workers risks of developing Giardia infections. The nurse should emphasize which of the following practices?

Answer Explanation: Transmission of the protozoan Giardia lamblia occurs when food or drink is contaminated with viable cysts of the organism. People often become infected while traveling to endemic areas or by drinking contaminated water from mountain streams within the United States. Berries, mosquitoes, and ticks are not sources of this microorganism.

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