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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.
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Thyroid conditions may make getting pregnant impossible.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.