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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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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.