Was it the chicken salad or the swim?

A new study finds swimming, having a private well or septic system, and other factors not involving food consumption were major risk factors for bacterial intestinal infections not occurring in outbreaks.

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<p><a href="http://www.physorg.com/news152207240.html">Was it the chicken salad or the swim?</a></p> <p>A new study finds swimming, having a private well or septic system, and other factors not involving food consumption were major risk factors for bacterial intestinal infections not occurring in outbreaks.</p>