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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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Green tea is able to stop the scent of garlic or onion from causing bad breath.
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The longest a person has survived after a heart transplant is 24 years.