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Gareth Cook

Good bugs in our body

By Gareth Cook
Globe Columnist / November 13, 2011

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In the popular mind, bacteria are the enemy. They are the invisible things that lay in wait all around us - clinging to food, countertops, our hands - ready to ambush us with their ancient poisons. But many bacteria are our friends, and an important new theory suggests that our pitched battle against the microbial world is making us sicker, and possibly even fatter.

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