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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.
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Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.
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Excessive alcohol use costs the country approximately $235 billion every year.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.