Flu cases are surging across the country – more than half of states are now at "very high" levels, the most severe ...

New Mexico, Texas and Nebraska are among the states with the highest number of people showing flu-like symptoms.

U.S. medical services providers are seeing the greatest numbers of flu cases since the 2009-2010 flu season, the Centers for Disease Control and Prevention announced on Friday.

Levels of influenza nationwide are now at the highest they have been since the peak of the 2009 swine flu pandemic, according ...