The latest data on respiratory illness in the United States shows that shoppers and merry-makers are spreading more than just holiday cheer: They’re also passing around germs. In many cases, it’s a ...

A number of diseases tend to peak in the winter, thanks to indoor gatherings that help germs spread. The list includes not ...

A new University of California San Diego School of Medicine study offers a unified biological model to explain how genetic ...

The flu season has started a few weeks earlier than in previous years. Japan, for instance has been recording an unusually ...