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Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.
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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.