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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.