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Did you know?
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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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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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
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The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.