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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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There are more nerve cells in one human brain than there are stars in the Milky Way.
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Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.
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Medication errors are three times higher among children and infants than with adults.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.