Outpatient visits have surged to their highest levels since the peak of the 2009 swine flu pandemic, with influenza-related emergency department visits remaining very high across the U.S. Notably, flu ...

Evidence suggests that the global swine flu pandemic of 2009 began in central Mexico, according to research supported by the National Institute of Allergy and Infectious Diseases of the National ...

Levels of influenza nationwide are now at the highest they have been since the peak of the 2009 swine flu pandemic, according to figures published Friday by the Centers for Disease Control and ...

The flu has further tightened its grip on the U.S. This season is now as bad as the swine flu epidemic nine years ago. A government report out Friday shows 1 of every 13 visits to the doctor last week ...

For researchers with The Ohio State University College of Veterinary Medicine, the work to identify new flu strains and increase the effectiveness of the flu vaccine begins in an unlikely place – pig ...

Influenza viruses are shifty entities. They accumulate small genetic changes on a regular basis, necessitating yearly updates to the flu vaccines because the prior year’s strain may not look much like ...