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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.