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

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

August 27, 2009 2:53 PM