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Vaccines prevent between 2.5 and 4 million deaths 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.
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Illicit drug use costs the United States approximately $181 billion every year.
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
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If all the neurons in the human body were lined up, they would stretch more than 600 miles.