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Bird Flu
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Avian Influenza / Bird Flu | |
What is Type A Influenza virus ? |
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The Avian viruses, along with the other influenza viruses, make up the virus family Orthomyxoviridae. The virus particle has an envelope with glycoprotein projections with hemagglutinating and neuraminidase activity. These two surface antigens, hemagglutinin (HA) and neuraminidase (NA), are the basis of describing the serologic identity of the influenza viruses using the letters H and N with the appropriate numbers in the virus designation e.g., H7N2. There are now 15 hemagglutinin and 9 neuraminidase antigens described among the Type A influenza viruses. The type designation (A, B, or C) is based upon the antigenic character of the M protein of the virus envelope and the nucleoprotein within the virus particle.
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Posted by:
johnexo
Posted on: 02/15/2011 Symptoms of avian influenza in humans have ranged from typical human influenza-like symptoms [fever, cough, sore throat, and muscle aches] to eye infections, pneumonia, severe respiratory diseases (such as acute respiratory distress syndrome).
http://www.biblehealth.com
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