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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.