This cold and flu season, you may be looking for clues you're getting better anywhere you can find them, even in the color of ...

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 ...

Cases of the flu viruses continue to surge across the U.S. and California, placing a strain on healthcare systems and causing tens of millions of illnesses and thousands of deaths each year.