A colony of microbial bacteria from human skin grows in a petri dish,
A colony of microbial bacteria from human skin grows in a petri dish, Bill Branson/National Institutes of Health/MCT
A colony of microbial bacteria from human skin grows in a petri dish, Bill Branson/National Institutes of Health/MCT

Politics & Government

August 27, 2009 2:53 PM

Germ phobes can't win: We're all host to trillions of microbes

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