It's flu season in Massachusetts, and most sick Bay Staters are coming down with Influenza Type A, according to recent health data. During the week of Dec. 28, 2025, to Jan. 3, 2026, there were 7,514 ...

Researchers are not just worried about the virus popping up on American farms. Other types are causing trouble around the world. By Apoorva Mandavilli In the United States, the term bird flu has ...

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. Two ...

Flu is making people miserable from coast to coast, thanks in large part to a new strain called subclade K. That’s why infectious disease experts are telling people to run, not walk, to get this ...