Dec 12, 2025 · 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.

Sep 27, 2025 · Infectious disease experts share the top signs of the flu in 2025 and 2026, how to distinguish flu symptoms from COVID, and what to do if you get the flu.

Nov 12, 2025 · Earlier this month, a group of Canadian researchers published early influenza data for the 2025-26 season, issuing a warning: There has been an observed mismatch with the …

Nov 21, 2025 · The strain has dominated the start of the 2025 to 2026 influenza season in England, the UK Health Security Agency said in a published pre-printed report earlier this month.

22 hours ago · Changes in the key antigenic regions of H3N2 viruses suggest that the upcoming flu season may require closer attention to vaccine matching and real-world effectiveness data.

Dec 3, 2025 · Flu cases are on the rise and doctors warn that it could be a particularly bad season. A new flu variant called subclade K has seven new mutations that help it evade …

Will flu season 2025-2026 be a bad one? Here's what infectious disease doctors want us all to know this year.

Nov 17, 2025 · The 2025–2026 flu vaccine is not an ideal match for subclade K, but it should still offer powerful protection against severe illness.

Nov 20, 2025 · Numerous respiratory sicknesses, similar to COVID-19, influenza (flu), and the frequent chilly, are anticipated to proceed circulating in 2026, typically with overlapping signs …

Dec 9, 2025 · The cold season is upon us, and with it comes waves of colds and flu. You’ve probably noticed someone at work with a persistent cough, or your child has come home from …