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Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.
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A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
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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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Illicit drug use costs the United States approximately $181 billion every year.
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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.