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  • Influenza (Flu) | CDC - Centers for Disease Control and Prevention

    http://www.cdc.gov/flu/

    H3N2 viruses were most common overall during this season, however, there was
    a wave of influenza B activity starting in early March. According to a report ...

  • Influenza (flu) - Mayo Clinic

    http://www.mayoclinic.org/diseases-conditions/flu/basics/definition/co...

    Influenza is a viral infection that attacks your respiratory system — your nose,
    throat and lungs. Influenza, commonly called the flu, is not the same as the ...

  • Influenza - Wikipedia, the free encyclopedia

    https://en.wikipedia.org/wiki/Influenza - 9 hours ago

    Influenza, commonly known as "the flu", is an infectious disease caused by the
    influenza virus. Symptoms can be mild to severe. The most common symptoms ...

  • Influenza (Flu) - National Foundation for Infectious Diseases

    http://www.nfid.org/influenza

    Influenza, more commonly referred to as "flu," impacts people of all ages.
    Influenza is a highly contagious viral infection of the nose, throat, and lungs that
    occurs ...

  • WHO | Influenza

    http://www.who.int/topics/influenza/en/

    Influenza: WHO health topic page on influenza provides links to descriptions of
    activities, reports, publications, statistics, news, multimedia and events, as well as
     ...

  • WHO | Influenza (Seasonal)

    http://www.who.int/mediacentre/factsheets/fs211/en/

    WHO fact sheet on influenza: includes key facts, definition, symptoms,
    transmission, seasonal epidemics, effects, prevention, WHO response.

  • WHO | Global Influenza Programme

    http://www.who.int/influenza/en/

    The Global Influenza Programme (GIP) provides Member States with strategic
    guidance, technical support and coordination of activities essential to make their
     ...

  • Influenza: Practice Essentials, Background, Pathophysiology

    http://emedicine.medscape.com/article/219557-overview

    Jan 6, 2015 ... Influenza, one of the most common infectious diseases, is a highly contagious
    airborne disease that occurs in seasonal epidemics and ...

  • Influenza (Seasonal Flu)-Topic Overview - WebMD

    http://www.webmd.com/cold-and-flu/tc/influenza-topic-overview

    Influenza (flu) is a viral infection. People often use the term "flu" to describe any
    kind of mild illness, such as a cold or a stomach virus, that has symptoms like the
     ...

  • Influenza - American Lung Association

    http://www.lung.org/lung-disease/influenza/

    Influenza, or flu, is a serious respiratory illness. It is easily spread from person to
    person and can lead to severe complications, even death.