The XFG COVID-19 variant, aka "Stratus," is spreading rapidly in the U.S. as cases climb. Here's what to know about symptoms ...

A phase 2 study shows that azelastine nasal spray lowered coronavirus infection rates to 2.2% compared to 6.7%, researchers ...

The ride with COVID-19 has been a twisting one, and not all have been enjoyable. Perhaps the oddest, most unforgettable ...

The active ingredient in a common over-the-counter allergy spray may do more than ease hay fever symptoms. A new clinical ...

COVID test positivity rates, which measure the percentage of positive tests out of all tests given, in the United States is ...

Two new COVID-19 Omicron sub-variants, Nimbus (NB.1.8.1) and Stratus (XFG), have been detected in India. Dr Neha Rastogi ...

After exposure to COVID-19, most infections become detectable within 3–7 days. Testing too early can yield false negatives, ...

More than a half a year into the battle against the novel coronavirus, here’s what we know now about the typical (and unusual) symptoms of Covid-19 — and the best ways to stay safe.

Coronavirus symptoms: Your questions about COVID-19 answered Health experts weigh in on the best ways to guard against the virus.

People with signature COVID-19 symptoms — fever, cough, fatigue and shortness of breath — should not immediately rush to the nearest emergency room. Here's why.

Patients with COVID-19 who felt more than five symptoms in their first week of illness were more likely to become a 'COVID-19 long hauler.' ...

Fever, cough and shortness of breath are still key signs that you might have Covid-19, but experts now know there are other red flags signaling infection ...