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Influenza - Wikipedia, the free encyclopedia
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Influenza , commonly referred to as the flu , is an infectious disease caused by RNA viruses of the family Orthomyxoviridae (the influenza viruses), that affects birds and mammals. The name influe...
en.wikipedia.org/wiki/Influenza
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Influenza virus (an Orthomyxovirus) is responsible for acute upper respiratory disease, usually accompanied by fever and myalgia. ... The envelope contains rigid "spikes" of haemagglutinin and neuraminidase which form a characteristic halo of projections around negatively stained virus particles. .
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www.uct.ac.za/depts/mmi/stannard/fluvirus.html
www.uct.ac.za/depts/mmi/stannard/fluvirus.html
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The Life Cycle of Influenza Virus ... Influenza A virus is essentially an avian virus that has "recently" crossed into mammals. Birds have the greatest number and range of influenza strains. Avian haemagglutinins sometimes appear in pig human and horse influenza strains.
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www.uct.ac.za/depts/mmi/jmoodie/influen2.html
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The emergence of a new influenza virus causing illness in people can result in an influenza pandemic, as occurred in the spring of 2009 when a new influenza A (H1N1) virus emerged to cause illness in people and spread worldwide.
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www.cdc.gov/FLU/about/viruses/index.htm
www.cdc.gov/FLU/about/viruses/index.htm
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Influenza (the flu) is a contagious respiratory illness caused by influenza viruses. It can cause mild to severe illness, and at times can lead to death. The best way to prevent seasonal flu is by getting a seasonal flu vaccination each year. ... How the virus spreads and how long people may be contagious…...
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www.cdc.gov/flu/about/disease/
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The influenza virus is a class of viruses containing RNA as its hereditary material. It replicates by entering a host cell and using this cell's resources to produce hundreds of copies of the viral RNA.
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www.accessexcellence.org/AB/GG/influenza.html
www.accessexcellence.org/AB/GG/influenza.html
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Los virus de influenza mutan o cambian continuamente, lo que le permite al virus eludir el sistema inmunológico de un niño. Las personas son suceptibles a la infección por influenza durante toda su vida. El proceso es el siguiente:
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www.healthsystem.virginia.edu/uvahealth/peds_infectious...
www.healthsystem.virginia.edu/uvahealth/peds_infectious_sp/flu.cfm
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