Researchers are still trying to understand why some people develop Long COVID: lasting symptoms of the disease that can ...

New research finds metformin may not treat long COVID symptoms despite early promise. Learn what studies reveal about long COVID treatment and prevention.

"As these viruses continue to evolve, public health officials watch carefully to see whether new strains will be more easily ...

Six years after the start of the COVID-19 pandemic, the virus still exists. A public health expert explains what Long COVID ...

High-dose Vitamin D doesn't reduce acute COVID severity but shows a promising signal for reducing Long COVID and brain fog.

In a large, randomized trial, researchers at Mass General Brigham found that high-dose vitamin D3 did not reduce COVID-19 ...

Vitamin D didn’t blunt COVID’s initial impact—but it may hold a surprising clue in the fight against long COVID.

Six years after the start of the COVID-19 pandemic, millions of Americans are still living with its long-term effects.

I took my meds, and then when I thought all was better, nope! I was smelling this horrible smell again, only to be ...

Long COVID is not rare. It is not mild. It is not over.

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes a respiratory illness with systemic immune cell activation, inflammation, widespread multiorgan dysfunction, and thrombosis.

There remains much we don’t know about long covid, including its origins. It’s a complex condition likely caused by more than one thing, including a dysfunctional immune response to the earliest covid ...