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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

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Vaccines prevent between 2.5 and 4 million deaths every year.

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Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

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About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

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On average, the stomach produces 2 L of hydrochloric acid per day.

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