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Did you know?
The longest a person has survived after a heart transplant is 24 years.
Did you know?
Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.
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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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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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There are 60,000 miles of blood vessels in every adult human.