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Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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Everyone has one nostril that is larger than the other.
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The human body produces and destroys 15 million blood cells every second.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.