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In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.
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There are more sensory neurons in the tongue than in any other part of the body.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.