AP — The U.S. winter virus season is in full force, and by one measure is the most intense in 15 years.
One indicator of flu activity is the percentage of doctor’s office visits driven by flu-like symptoms. Last week, that number was clearly higher than the peak of any winter flu season since 2009-2010, when a swine flu pandemic hit the nation, according to data posted Friday morning by the Centers for Disease Control and Prevention. ...
Overall, 43 states reported high or very high flu activity last week. Flu was most intense in the South, Southwest and western states.
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