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    Seasonal flu: What you need to know

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Seasonal flu: What you need to know

This gradually evolving virus spreads easily from person to person, and can be deadly for high risk groups such as the very young and old.
Source: CNN

The flu (14 Videos)

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Seasonal flu: What you need to know

This gradually evolving virus spreads easily from person to person, and can be deadly for high risk groups such as the very young and old.
Source: CNN