Across the United States, clinics and emergency rooms are again filling with people who have high fevers, hacking coughs, and ...

Pneumonia is an infection of the lungs, sometimes called a "lower respiratory tract" infection to distinguish it from an ...

The U.S. Food and Drug Administration may soon convert an entire generation of U.S. children, especially children in foster ...

Dear D.K.: Pneumonia is an infection of the lungs, sometimes called a "lower respiratory tract" infection to distinguish it ...

From Plague Inc. to Prototype, these games let you play as the bringer of the apocalypse instead of the hero that saves the ...

DNA and RNA aptamers can power portable biosensors that detect viruses within minutes, with potential uses beyond clinical ...

Subclade K (previously known as J.2.4.1) is gaining attention because it appears to be spreading much earlier in the flu ...

The Influenza A H3N2 virus subclade K represents a change in the basic structure of the influenza virus.

A particularly infectious subvariant of influenza is keeping emergency room numbers high and causing especially severe ...

Despite days in close quarters with flu patients, healthy volunteers didn’t get sick – revealing insights into transmission.

Researchers report that shared indoor space alone is insufficient for influenza spread, highlighting the importance of ...

Flu cases are ticking down, but experts warn the U.S. isn’t out of the woods yet.