Read about the different types of flu viruses, and learn how the flu can spread and change. Learn how many people are hospitalized due to the influenza virus every year and more.

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Concepts

the flu

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Additional Tags

catching the flu, causes of the flu, changing flu virus, flu, flu death, flu hospitalization, flu virus change, influenza, influenza a, influenza b, influenza c, spread of flu, types of flu virus, cdc, center for disease control, influenza virus, influenza (flu)

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Classroom Considerations

Knovation Readability Score: 5 (1 low difficulty, 5 high difficulty)

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