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Author Question: Kathy Kelly, a seventh-grade teacher, notices that Joanne, a new student, appears quite ill at ease ... (Read 55 times) |
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Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.
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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.
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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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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.