Do you have a sore throat, a runny nose and muscle aches? It could be a common cold, a case of the flu -- or COVID-19. The illnesses all share similar symptoms, sometimes making it hard to distinguish ...

In addition to allergies, COVID-19, RSV, influenza and a new Cicada COVID variant are on the rise. But which one do you have?

The key differences between the ‘Cicada’ Covid variant and the common cold or flu as the CDC reveals the virus is circulating ...

At-home tests that can tell you if you have the flu or COVID-19 are readily available this winter season. Many different brands are available at major pharmacies and retailers nationwide, as well as ...

The COVID virus, or rather people's immune response to it, has changed and it might be prudent to wait a couple days after symptoms start before taking a COVID test, researchers report. "For COVID, we ...