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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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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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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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Illicit drug use costs the United States approximately $181 billion every year.