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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
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Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.