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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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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.
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People about to have surgery must tell their health care providers about all supplements they take.
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Green tea is able to stop the scent of garlic or onion from causing bad breath.