A highly contagious flu mutation called subclade K is sweeping the nation, raising health concerns about vaccine ...

The onset of H3N2 flu is often sudden and intense. Symptoms can develop within hours and include fever, chills, headache, ...

Doctors and scientists say this year's influenza season could be tougher than usual, with a new version of the flu virus, ...

A fast-spreading H3N2 flu strain is driving an unusually intense early season in the U.S., with millions of illnesses and ...

Changes in the key antigenic regions of H3N2 viruses suggest that the upcoming flu season may require closer attention to ...

Flu symptoms typically lasts at least five days and up to two weeks. Some symptoms, like a cough, may persist even longer ...

The World Health Organization selected the components for the northern hemisphere influenza vaccine between February and ...

Health officials are warning people about a flu virus called H3N2 that is spreading in the United States and other countries ...

Flu cases have soared (hospital admissions are up 50% vs this time last year) and reports say there's a new H3N2 strain. Here ...

At least 14 states and Washington, DC, are seeing high and very high levels of flu, mainly caused by a surprise new influenza ...

A new flu strain, H3N2 Subclade K, is causing a surge in cases across Europe, USA, and Canada. Health organizations are ...

H3N2 Subclade K is a new mutant flu strain spreading rapidly in the US and Europe. Know symptoms, risks, transmission, and ...