Those infected with the flu are most contagious during the first three days, the CDC said. In some cases, however, people can ...

Flu cases are rising across the U.S. Here's what you need to know about symptoms, flu duration and the new strain ...

With flu cases surging in Illinois as a new and mutated variant rapidly spreads, mitigating spread of those who contract the virus is increasingly important. But how long are you actually contagious ...

Norovirus, the highly contagious stomach bug that causes vomiting and diarrhea, is surging again. Here's what to expect and ...

As North Carolina illness rates spike post-holidays, here's what to know about the spread of flu, stomach flu and COVID-19.

It’s a tricky question to answer, but experts say symptoms and rapid tests are still good guides. By Dana G. Smith As we cope with our fifth Covid summer, people are once again navigating travel and ...

The world may no longer fully live in the grip of COVID-19, but another heavily contagious disease is currently spreading ...

While not contagious like a virus, feelings of depression can spread through social groups due to social comparison, emotional interpretation, and empathy. Those with a history of mood disorders, ...

What is yawning? And why do we do so much of it? Neuroscientist and yawn expert Robert Provine says it's "ancient and autonomic." It stems from early evolution and is common to many creatures—even ...

TIME’s new health column, It’s Not Just You, explores the phenomena behind some of life’s most everyday yet baffling behaviors. If seeing someone mid-yawn makes you involuntarily stretch out your ...