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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.
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Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.