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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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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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As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").