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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 ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.