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.

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.

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.

Doctors say the virus is in its endemic phase. Here's what that means.

The first known meta-analysis of how SARS-CoV-2 variant type and time since infection influence long-COVID symptoms ties Omicron to brain fog and paresthesia (numbness and tingling), while earlier ...

Noah Greenspan, DPT explains challenges diagnosing long COVID and strategies like pacing, compression, and electrolytes to support recovery. Long COVID has been an ongoing health concern in the United ...

Problems with iron levels in the blood and the body's ability to regulate this important nutrient as a result of SARS-CoV-2 ...