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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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As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.
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The longest a person has survived after a heart transplant is 24 years.