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

Six years ago, on March 11, 2020, the World Health Organization declared COVID-19 a global pandemic. Here's what else ...

In this letter, I’m going to offer a possible way of thinking about long COVID symptoms and how to treat them.

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

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

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

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.

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

Some members of the CDC’s vaccine advisory panel have publicly questioned the safety and manufacturing of the shots, including raising a debunked theory that DNA contaminants in the vaccines are ...

Six years after New Zealand moved into its first lockdown, the final inquiry report examines lockdowns, mandates and the cost of the pandemic.

The airline will pay $105 million to hundreds of thousands of customers hit by the lack of access to refunds from flights cancelled at the height of the pandemic.

Troubling headlines have been cropping up across Asia: Patients who were diagnosed with COVID-19 and seemingly recovered have been readmitted to the hospital after testing positive for the virus again ...