In a Phase 3 trial of more than 18,000 volunteers across three countries, an mRNA influenza vaccine from Pfizer has ...

This year’s flu season could be more serious due to a new Influenza H3N2 mutation known as “subclade K." Here's what to know ...

The European Commission will ultimately decide on whether marketing authorizations under exceptional circumstances for ...

The variant is known as influenza A subtype H3N2 subclade K–sometimes called “subclade K” for short—and it has been detected ...

The U.S. flu season is starting slowly, and it’s not clear if it will be as bad as last winter’s. But some health experts are ...

California could see an early and especially sharp start to the annual flu season, as a combination of low vaccination rates ...

N-2, also known as Subclade K, is causing significantly more symptoms in older adults and young children, Dr. Ali Raja said.

Among patients hospitalized with severe influenza, those with A(H1N1) have more high-risk clinical indicators vs those with other subtypes.

Flu admissions rates remain low across the U.S., though are beginning to rise ahead of holiday gatherings, according to the CDC’s latest FluView report. At least 2,350 patients with ...

Pfizer's mRNA flu vaccine worked better than a standard flu shot in a large Phase 3 trial, researchers reported in the ...

The United States may be heading into its second severe flu season in a row, driven by a mutated strain called subclade K ...