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

While coughing and sniffling students are not an abnormal sight on Georgetown University’s campus during the winter, this ...

It is definitely still worth getting a vaccine. If H1N1 comes around, you can get infected with that one or even a second ...

This year’s flu season is brutal — and getting the vaccine is one of the best ways to prevent yourself from getting seriously ...

At Dallas’s Guadalupe Medical Center, staff are treating a wave of flu cases as they check in about 140 patients a day. “This year, pretty much every other child that comes in is positive for flu, and ...

Peak flu season may be worse than usual this year, driven in part by a potent new strain of influenza. As of Monday, Michigan hospitals reported that 818 of their inpatients — 759 adults and 59 ...

If you’ve noticed a surprising number of Aussies sneezing summer, the culprit may be a new influenza strain dubbed “Super-K”.

Two new analyses, one from France and one from China, suggest that seasonal influenza vaccination provided moderate protection during the early months of the 2025–26 flu season, despite the rapid ...

"Beyond typical flu symptoms like fever, cough and body aches, warning signs include trouble breathing, chest pain, confusion, severe weakness, persistent vomiting or symptoms that worsen instead of ...

A novel subclade of influenza A(H3N2), which was identified only after the 2025–2026 vaccine formulation was finalised, has ...

Officials say it's not too late for a vaccine.

This flu season, a particularly aggressive strain is spreading across southern West Virginia, and health officials warn that the Mountain State’s older, under-vaccinated population could face rising ...