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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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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
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Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.
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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.