New research led by Mass General Brigham followed more than 3,500 patients, finding that 10.3% had symptoms consistent with ...

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 ...

A new clinical trial explored whether raising cellular NAD⁺ levels with high-dose nicotinamide riboside could influence lingering neurological and physical symptoms in long-COVID. Millions of people ...

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 ...

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 ...

Covid, flu and the common cold share many symptoms, but there is one key sign that could help you differentiate between the ...

At 12 months, risk factors for persistence of long COVID symptoms included male sex, fever, and taste disorder.

This symptom appears more frequently in cases of illnesses such as Covid or respiratory syncytial virus (RSV). An update from ...