Health
Flu Season 2025-2026: What You Need to Know
Health Points
- Flu cases and hospitalizations are at their highest in more than two decades.
- A new H3N2 subclade K variant is responsible for many infections this year.
- Emergency rooms and hospitals are experiencing significant strain nationwide.
This flu season is hitting the United States harder than usual, with at least 45 states seeing high levels of influenza activity.
Healthcare providers are reporting the most flu-related visits since the late 1990s, causing strain on hospitals and emergency rooms.
Subclade K “Super Flu” and Hospital Impact
The main culprit is the influenza A H3N2 subclade K variant, which has been driving increased infections and hospitalizations.
“There’s no doubt about it. It’s an unusual season. It’s been severe, with a rapid onset,” says Dr. Michael Phillips, director at NYU Grossman School of Medicine.
Current information does not suggest this “super flu” is more dangerous than previous strains, but it may evade some immunity from past infections or vaccines.
Children are particularly affected this year, with pediatric hospitals facing increased admissions and some states restricting visitors to help manage the influx.
Where the Flu Is Surging
“New York was hit hard and hit early. Our emergency departments are packed,” explains Dr. Phillips, illustrating the nationwide strain on medical resources.
The CDC lists states such as Alabama, Colorado, New York, and South Carolina among those with the highest flu activity rates.
Dr. Scott Roberts from Yale School of Medicine notes, “It’s one of our worst flu seasons since before COVID. … It’s rough out there.”
The CDC continues to recommend discussing flu vaccination options with your healthcare provider, as this season’s vaccine is expected to offer protection against the circulating strains.
Stay informed, seek medical guidance if you have severe symptoms, and consider vaccination to help protect yourself and your community.
