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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.
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Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.