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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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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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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.