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

In a breakthrough for influenza research, scientists have discovered immune cells that can recognize influenza (flu) viruses ...

Scientists in Switzerland have cracked open a century-old viral mystery by decoding the genome of the 1918 influenza virus from a preserved Zurich patient. This ancient RNA revealed that the virus had ...

Blue lines represent statistically supported migration events between countries with line thickness proportional to the Bayes factor. Red circles represent the posterior probability of migration ...

The flu virus is constantly evolving, meaning immunity from past infections or vaccinations may not fully protect against new strains. These mutations are why last year’s flu vaccine may no longer be ...