Flu cases are spiking earlier than usual. What you need to know.

Known as subclade K, a new, mutated flu strain that has dominated in Europe and Asia is now rapidly spreading across the US.

Flu sublcade K drives up cases in 52 Florida counties

Following a national trend, 52 counties in Florida saw increasing cases of influenza A driven by a new mutation called ...

Flu season could get a lot worse in the coming weeks, experts say

This flu season has been relatively mild so far but medical experts expect it to intensify in the coming weeks due to a new ...

Doctors warn of ‘super flu’ variant circulating in hot spots across the country

Ahead of the holiday tourist rush, city health officials in New York City reported nearly 14,000 flu cases in the first week of December.

Flu season is hitting kids hard. As the holidays near, older adults are likely next.

A new strain called H3N2 subclade K has emerged, raising concerns that the body may not be able to fight it off as well.

Flu and norovirus cases surge ahead of busy holiday travel week

Health officials have warned this season’s flu is being driven largely by the newly identified H3N2 subclade K strain.

How dangerous is the ‘K’ strain super-flu?

Cases of the new “subclade K” super-flu are “ballooning” in the UK, said NHS England. Its latest figures show that the number ...
Scientific American

New Flu Variant May Be Triggering Spike in Severe Disease

A novel influenza variant called subclade K appears to be driving an uptick in cases and hospitalizations throughout the U.S.
Medscape

New ‘Subclade K’ Flu Strain Surges Across Europe

More than 90% of confirmed influenza cases in the World Health Organization (WHO) European Region have tested positive for a new mutated strain of influenza known as AH3N2 J.2.4.1 or “subclade K,” the ...