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HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.
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If you could remove all of your skin, it would weigh up to 5 pounds.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.