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Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
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Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.