What's on our skin that prevents bacteria and viruses from entering?

Anonymous2019-06-09T17:44:29Z

Nothing. You're covered in bacteria and viruses.

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James2019-06-08T23:00:01Z

The dry outer keratinized skin layer. It's a pretty good barrier.

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Anonymous2019-06-08T19:57:51Z

The skin. How the skin is structured and it being at the right pH balance

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