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


    While H3N2 viruses remain most common, an increase in influenza B viruses has
    been detected in some parts of the country. This season has been severe for ...

  • Influenza (flu) Definition - Diseases and Conditions - Mayo Clinic


    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


    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 (Seasonal Flu)-Topic Overview - WebMD


    Influenza (flu) is an illness caused by a virus that comes on suddenly, and causes
    symptoms such as fever, body aches, headache, fatigue, loss of appetite, a dry ...

  • WHO | Influenza (Seasonal)


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

  • WHO | Global Influenza Programme


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

  • Influenza - American Lung Association


    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. We ALL ...

  • What is flu? What is influenza? What are the symptoms of flu ...


    Sep 10, 2014 ... Influenza, or flu, is a respiratory illness that is caused by a virus. Flu is highly
    contagious and is usually spread by the coughs and sneezes of a ...

  • Influenza (Flu) - National Foundation for Infectious Diseases


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

  • Influenza Strikes . : The Great Pandemic : : The United States in ...


    Throughout history, influenza viruses have mutated and caused pandemics ... In
    1890, an especially virulent influenza pandemic struck, killing many Americans.