4 Things You Must Know About the New Severe Flu Variant

by | Jan 20, 2026 | News & Insights

What to know as the “super flu” continues to spread.  

As we move through peak flu season, hearing about friends and family who are sick and the sound of coughs and sneezes filling the air is typical for late January. However, the recent surge in flu activity and the announcement of a newly emerged flu variant for the 2025–2026 flu season may feel alarming.

This phenomenon, often referred to as a “super flu,” has raised some concerns about how to keep yourself and your loved ones healthy and safe this season.

What Is the New Flu Variant?

The newly identified flu variant, known as subclade K, has gained attention due to its rapid, widespread transmission. While the phrase “super flu” is not a medical term, the public has coined this name due to the strain’s severity and high activity. According to the CDC, this season has seen the highest number of flu cases in more than 30 years, with at least 11 million infections reported nationwide, leading to significant hospitalizations and deaths. Flu activity has reached high or very high levels in most U.S. states, and current data suggest this strain is responsible for approximately 90% of flu cases.

4 Things You Must Know About the New Severe Flu

1. Symptoms May Mimic This Season’s Common Illnesses

The symptoms of the new flu variant are similar to those of the traditional flu and common cold, including fever, cough, sore throat, body aches, fatigue, and congestion. Because symptoms overlap, testing and medical evaluation are important for an accurate diagnosis. Early treatment can help reduce the severity and duration of symptoms.

2. Hand Hygiene Still Matters

Frequent handwashing is one of the most effective ways to prevent the spread of flu viruses. Because the virus spreads through respiratory droplets and contact with contaminated surfaces, keeping your hands clean can help reduce your risk of infection.

Find the proper handwashing technique here.

3. Symptoms May Last Longer Than Typical Flu

Some patients are experiencing prolonged symptoms, including lingering fatigue and cough. It’s important to remain calm, but if symptoms worsen or become severe, seek immediate medical care.

4. Certain Groups Are at Higher Risk

Older adults, young children, pregnant individuals, and those with chronic medical conditions are more likely to experience complications if diagnosed with the flu. If you belong to a higher-risk group and experience flu symptoms, seek medical attention promptly.

Beat the Flu with NW Indiana ER & Hospital

Open 24/7, including weekends and holidays, NW Indiana  ER & Hospital is here to help you and your loved ones feel better this cold and flu season. From severe coughing and dehydration to high fever and flu-like symptoms, our dedicated team of experienced physicians provide on-site testing, fast and accurate results, and prompt treatment, helping you return to your daily activities as quickly as possible, all in one convenient location.

Disclaimer: As a service to our readers, NW Indiana ER & Hospital and Nutex Health state no content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.

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