There are just too many things living on our hands to wash all of them off.
Killing all the microbes on your hands has never even been the point of hand-washing. The point is to get as big a ...
The Centers for Disease Control and Prevention says to wash your hands for 20 seconds. The World Health Organization says hand-washing should take 40 to 60 seconds. And it's complicated to deter...
Food safety researchers have to think in orders of magnitude, by necessity. Instead of aiming to completely wipe out a population of microbes, they’re trying to achieve a relative decrease as measu...
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