A mutated strain of influenza A, H3N2 subclade K, is surging worldwide, sparking concern about a severe flu season in the U.S. Here's what to symptoms to look out for.

After a sharp uptick in flu cases in mid-December 2025, flu activity across the U.S. and Canada remains high. Data from the Centers for Disease Control and Prevention shows the U.

Add Yahoo as a preferred source to see more of our stories on Google. A new flu variant known as subclade K is on the rise across the country. Although a spike in this particular strain of influenza, ...

There were 333 cases of all influenza types and 223 confirmed influenza A cases reported in Boone County last week.

The arrival of agriculture coincided with a sharp rise in a gene variant that protected against the virus that causes winter vomiting, researchers from Karolinska Institutet and Linköping University ...

COMPANY PROMOTED AND MONITORED OPIOIDS. RIGHT NOW, AT 446 IN THE AFTERNOON, WE TURN OUR ATTENTION TO FIVE ON YOUR HEALTH, AND THERE IS A NEW VARIANT OF THE FLU VIRUS THAT’S CREATING AN EARLY SURGE OF ...

The new coronavirus variant spreading globally, especially in parts of Asia, has not taken hold in Germany, according to the World Health Organization. The variant, known as NB.1.8.1, was first ...