Schools in at least two states canceled classes at the start of this week amid a surge in influenza cases nationwide.

Doctor visits for flu symptoms are at a 15-year high. Why is this flu season so bad? Doctors discuss flu trends, symptoms and how to stay safe.

The map of flu activity across the United States continues to darken, both figuratively and literally, as case numbers spike upward in most states, according to the Centers for Disease Control and ...

Cases of the seasonal flu in the U.S. have reached their highest numbers in more than a decade, according to the Centers for Disease Control and Prevention.

Low vaccination rates may be contributing to the spread of flu, but data suggests the number of cases so far this season is ...

U.S. medical services providers are seeing the greatest numbers of flu cases since the 2009-2010 flu season, the Centers for ...

Children are especially vulnerable to the flu and accounted for 10 influenza deaths during the week ending Feb. 1, raising the current flu ... viruses and the common cold. Wisconsin is ranked ...

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