I've heard that sometimes it can be dangerous to swim in rives and lakes because of bacteria in the water. Can you tell me what are things I can do to protect myself if I ever swim in one of those bodies of water?
I've heard that sometimes it can be dangerous to swim in rives and lakes because of bacteria in the water. Can you tell me what are things I can do to protect myself if I ever swim in one of those bodies of water?
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