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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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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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There are approximately 3 million unintended pregnancies in the United States each year.
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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.