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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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The average office desk has 400 times more bacteria on it than a toilet.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.