It's short for influenza, which is caused by various forms of virus.
2007-02-19 13:05:59
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answer #1
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answered by Anonymous 7
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A flu is a severe viral infection, characterized by high fever, headache, fatigue and weakness, chest discomfort. It is different from a cold in that you don't always have a stuffy nose. But it can lead to pneuomonia if not treated properly. With the flu, you must rest, or you can get sicker and get pneumonia. A cold is much milder and many people can function with a cold.
2007-02-19 13:09:23
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answer #2
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answered by doolphinn 2
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Its an orthomyxovirus that infects the upper respiratory tract in humans. Symptoms may include Fever, sore throat, Headache, Loss of appetite and aversion to light
2007-02-19 19:20:31
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answer #3
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answered by Bacteria Boy 4
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An illness caused by a variety of viruses.
2007-02-19 13:00:43
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answer #4
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answered by ckm1956 7
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It's a virus.
2007-02-19 13:00:17
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answer #5
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answered by chardonnay 2
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