What: "You may think that good hand hygiene before every crime would protect you but you'd be wrong. The roughly 150 different species of bacteria on our hands replenish themselves quickly after a good hand washing. You wouldn't want to get rid of them either. Bacteria are like sharks. A small percentage of them will eagerly bite your head off but the vast majority are harmless, even beneficial."

Writer: Bob Novella

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Date: Oct 25 2013 5:02 PM