Historically, COVID-19 symptoms have been fevers or chills, cough, shortness of breath, cough, congestion or a runny nose, ...

Not anymore. In March, the Centers for Disease Control and Prevention (CDC) updated its COVID isolation guidelines based on symptoms, not time since testing positive. Bottom line: If you’re sick ...

How long are you contagious after getting COVID, flu, RSV, pneumonia, the norovirus stomach bug and more? Here's what to know to keep others safe this holiday season.

The U.S. is seeing a "quad-demic" as cases of COVID-19, flu, RSV and norovirus spread at the same time. Experts said this is ...