COVID

Older people are particularly vulnerable to COVID and should get another vaccine against the disease this spring, doctors say

Nose-plus-throat swabbing for COVID could increase test accuracy—but could create problems, too

Researchers who “test the tests” say that COVID rapid tests have kept up with new variants

A long-awaited study of people with ME/CFS revealed differences in their immune and nervous system. The findings may offer clues about long COVID

Four years into the pandemic, many people have had COVID more than once—but the health consequences of repeat infections are not yet clear

The pandemic early exposed weaknesses in CDC’s laboratories. Organizational and culture changes there are good first steps, but more must be done

“We’re still in a pandemic,” says a lead COVID official with the World Health Organization

Disinformation abounds, and it can kill. Fortunately, it can often be unambiguously identified

Infants born to people who had COVID while pregnant are at a higher risk of respiratory distress, but vaccination greatly lowers the risk

Proteins involved in immunity, clotting and inflammation could help to unravel the complexity of long COVID

A new variant of the COVID-causing virus SARS-CoV-2 is behind the latest surge in infections this winter, but it doesn't appear to cause more severe disease

You have a “better chance of becoming Spider-Man” than being harmed by DNA from COVID vaccines