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Did you know?
About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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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.
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More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.