Be careful where you swim this summer

I've been known to jump in rivers and lakes to cool off during the summer—and granted, it always does the trick. But I'll be sticking to pools for the foreseeable future.

As swimming season kicks off in much of the U.S., I asked experts about the risks lurking in natural bodies of water, and learned about some less-than-appealing (and common) bacteria, viruses, and parasites.

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If you were forwarded this and want to sign up to receive it daily, click here. Today's newsletter was written by Angela Haupt and edited by Mandy Oaklander.