Staph is a common normal flora I believe. I would have bet all of us have staph on us. I'd go for D) It's actually 100%. Just my guess.
Normal flora is a stew of bacteria and virus that exists in our bodies all the time. the flora of the mouth, stomach, eye, skin, bladder, etc are all variable, but normal for that area. we don;t get sick from them. But of there is a damaged area, ie a cut, the nromal flora acan penetrate our first defense, the skin, and replicate faster than we can eat them and thus infection is born. Scott
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