Ever since Mike Hall’s wife was infected with COVID-19 in June 2022, their lives have never been the same. Hall’s wife has ...

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 ...

New study reveals vitamin D supplements may reduce long COVID risk by 4%. Promising results for symptoms like fatigue and brain fog in clinical trial.

Per-protocol analyses, however, suggested a nonsignificant trend toward a lower prevalence of long COVID at two months (OR, 0 ...

Doctors across multiple countries are flagging a painful new COVID-19 symptom tied to a fast-spreading variant: a sore throat so severe that patients compare it to swallowing razor blades. The symptom ...

A major clinical trial has delivered an unexpected twist in the search for ways to fight COVID-19 and its lingering effects. Researchers at Mass General Brigham found that taking high doses of vitamin ...

New research led by Mass General Brigham followed more than 3,500 patients, finding that 10.3% had symptoms consistent with long COVID three months after infection, 81% of whom continued to experience ...

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 ...

In a large, randomized trial, researchers at Mass General Brigham have found that high-dose vitamin D3 did not reduce COVID-19 infection severity, but may impact long COVID outcomes.

Learn the latest CDC COVID vaccine recommendations for 2025. Find out why updated shots matter for adults 65+, their safety, timing, and how they reduce severe illness and long COVID. On Sept. 19, ...