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Did you know?
The human body produces and destroys 15 million blood cells every second.
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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.
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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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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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Human kidneys will clean about 1 million gallons of blood in an average lifetime.