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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.
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The longest a person has survived after a heart transplant is 24 years.
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More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.