34 states have 'high' or 'very high' levels of flu activity

Seasonal flu activity is up across the United States, according to the Centers for Disease Control and Prevention data.The ...
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Five states have 'very high' flu activity. See what it's like in your state

Seasonal flu activity is up across the United States, according to the Centers for Disease Control and Prevention data.There was a 14.8% increase in positive influenza tests as of the week ending Dec.