What is influenza

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 flu. But the real flu is different. Flu symptoms are usually worse than a cold and last longer. The flu usually does not cause vomiting or diarrhea

TAGS: virus, influenza virus, symptoms, vaccine, illness, flu, influenza vaccine, influenza viruses, complications, flu shot, fever, disease, infected, Influenza, risk, strains, pandemic, H1N1, cough, influenza

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