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

Six years after the COVID-19 pandemic began, doctors are still treating long COVID patients with complex symptoms and unknown ...

Flu has overtaken covid in infections and hospitalizations during the winter respiratory virus season, and their virulence is ...

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

A UVA Health study finds severe viral infections can prime the lungs for cancer, but vaccination appears to reduce that risk.

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

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 ...

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.

In a new study, researchers found that being hospitalized for flu or COVID-19 was linked to a 24 percent increase in later ...