A particularly infectious subvariant of influenza is keeping emergency room numbers high and causing especially severe ...

Flu cases and hospitalizations are surging, already breaking last season's records. Here's where activity is highest, what ...

A ferocious surge of flu cases is linked in part to a variant that has not been dominant in the past few years — resulting in ...

Flu is rising rapidly across the U.S., driven by a new variant of the virus. The Centers for Disease Control and Prevention ...

Data from a major U.S. clinical trial from the Alliance for Clinical Trials in Oncology has uncovered a genetic factor that ...

As COVID-19 continues to evolve, new variants have emerged in 2026 with symptoms and transmission characteristics similar to earlier strains but with some distinct traits. Understanding these new ...

WASHINGTON (AP) — Flu is rising rapidly across the U.S., driven by a new variant of the virus — and cases are expected to keep growing with holiday travel. That variant, known as “subclade K,” led to ...

(NEXSTAR) – The flu virus is already hitting hard this season as a new variant spreads rapidly, but it’s not too late to protect yourself, experts say. Much of the concern this flu season is coming ...

One of the leading triggers for multiple sclerosis (MS) is an infection with the Epstein-Barr virus. However, certain gene variants also play an important role.