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

    http://www.cdc.gov/flu/ - 18 hours ago

    Everything you need to know about the flu illness, including symptoms, treatment
    and prevention - CDC.

  • Influenza - Wikipedia, the free encyclopedia

    https://en.wikipedia.org/wiki/Influenza

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

  • 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 stomach ...

  • 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
     ...

  • Influenza: Practice Essentials, Background, Pathophysiology

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

    Oct 21, 2015 ... Influenza, one of the most common infectious diseases, is a highly contagious
    airborne disease that occurs in seasonal epidemics and ...

  • Different Types of Flu: Influenza A, B, C and more - WebMD

    http://www.webmd.com/cold-and-flu/flu-guide/advanced-reading-types-of-...

    Flu, or influenza, is a contagious respiratory infection caused by a variety of flu
    viruses. Symptoms of flu involve muscle aches and soreness, headache, 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 (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 ...

  • Flu.gov: Home

    http://www.flu.gov/

    Get the seasonal and pandemic flu information you need at Flu.gov.

  • Flu: MedlinePlus

    https://www.nlm.nih.gov/medlineplus/flu.html

    CDC Influenza E-Brief 2015 (Centers for Disease Control and Prevention) - PDF
    ... Transmission of Flu (Influenza) From the National Institutes of Health ...