Flu activity spiked in states across the U.S. during the last week of November, according to a new report from the Centers for Disease Control and Prevention (CDC).

This year's flu path started in the southeastern US in October before spreading to the West Coast, as shown in this animated map: While that ... the "Aussie flu". But just because the flu shot ...

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 ...