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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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Vaccines prevent between 2.5 and 4 million deaths every year.
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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.