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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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Green tea is able to stop the scent of garlic or onion from causing bad breath.
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More than 4.4billion prescriptions were dispensed within the United States in 2016.
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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
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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.