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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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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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Medication errors are three times higher among children and infants than with adults.
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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.