With measles outbreaks, flu spikes, and COVID as a seasonal threat, learn key differences between these contagious diseases, ...

The current flu season has seen the highest rate of doctor’s visits for flu-like symptoms since the US began collecting data through a national surveillance network. CNN is tracking these case rates ...

It's *** gift no one wants to give or get, but with travel and get-togethers this holiday season, respiratory viruses can be easily spread, and it's already starting. I'm actually consulting in my ...

Influenza D virus, a pathogen best known for causing respiratory illness in cattle, appears to be silently infecting farmworkers across multiple continents, according to a growing body of serological ...

We asked a doctor for his expert take.

Research shows that many viruses can linger in the air and on surfaces long after an infected person has left the room — ...