Subclade K NewsLatest News On Subclade K New Flu Strain with High Fevers and Severe Symptoms Hits Children and Adults3/22/2026 7:30 PM Illinois Grapples with a Severe Flu Surge Driven by New Variant2/23/2026 4:57 PM Doctors still recommend flu shot despite sneaky new strain1/6/2026 7:23 PM Flu reaches highest levels in 25 years, likely to get worse, health officials say1/6/2026 11:32 AM Flu reaches highest levels in 25 years, likely to get worse, health officials say1/6/2026 10:00 AM Flu reaches highest levels in 25 years, likely to get worse, health officials say1/6/2026 9:18 AM US Flu Season Escalates: Hospitalizations, Illnesses, and Deaths Surge, CDC Reports1/6/2026 12:19 AM New York Reports Record-Breaking Flu Hospitalizations, Prompting Health Warnings1/5/2026 10:48 PM New Flu Variant Drives Rapid Rise in U.S. Cases12/31/2025 1:11 PM Flu is rising rapidly, driven by a new variant. Here’s what to know12/31/2025 7:29 AM