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 ...

The novel coronavirus that causes COVID-19 has spread globally, killing hundreds of thousands of people and infecting millions more. The pandemic has upended life around the world, delivering a ...

Respiratory viruses are more active from October through March. Use over-the-counter COVID tests and clinical tests to distinguish respiratory viruses. Health officials advise vaccines, testing and ...

Two medical experts are weighing in on a new study that lists six levels of COVID-19 symptom severity and are showing how its findings could help doctors treat patients. The research study used data ...

CHICAGO (WLS) -- Spring is here, and with warmer weather comes allergy season, including symptoms that often overlap with the coronavirus. And with climate change, experts say we are seeing a ...

A common cold symptom could also be a sign of long Covid. Most people recover from coronavirus within a few weeks of the symptoms first appearing. However, NHS guidance warns that some people may ...

A new COVID-19 variant is climbing the ranks in the United States, becoming the third-most common strain of the summer. Variant XFG, colloquially known as "Stratus," was first detected in Southeast ...