Influenza viruses are small, replicating disease entities, categorized by “strains,” e.g. Influenza A, Influenza B, and Influenza C. These not only replicate but mutate as well, Influenza A doing so very rapidly, being responsible for some of the more serious illnesses, such as the Spanish Flu and the Bird Flu. Although the immune system can prevent re-infection by identical virus particles, mutations prevent recognition. Influenza viruses can be identified by their protein coat—Influenza A viruses according to hemagglutinin and neuraminidase; hence they bear designations like H1N1, etc. Viruses that can transfer from animals to humans are especially problem causing. Allow articles by your Bright Hub contributors to keep you informed.
Influenza Virus - CDC

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| Replication of the Influenza Virus
The influenza virus causes the seasonal flu. Replication of the influenza virus requires the translational process of host cell to create viral proteins. These proteins transcribe the... |
Flu Vaccine Effectiveness and Production Time
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| Why Your Flu Shot is Only Good for a Year
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Zoonotic Influenza: Crossing the Species Barrier
How could swine flu or bird flu become transmissible from human to human? Get the facts on influenza zoonosis; the spread of influenza across the species barrier.... |