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Did you know?
Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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Approximately 25% of all reported medication errors result from some kind of name confusion.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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There are 20 feet of blood vessels in each square inch of human skin.