Fri Dec 26 12:10:00 UTC 2025: Okay, here’s a summarized news article based on the provided text:

Headline: ‘Super Flu’ H3N2 Spreads Rapidly: What to Expect and When to Seek Help

London, UK – A mutated strain of the flu virus, H3N2 subclade K, dubbed the “super flu,” is spreading rapidly this winter, leaving those infected feeling significantly worse than with typical seasonal influenza. Experts warn that the illness, characterized by a sudden onset of intense symptoms including fever, chills, headache, sore throat, muscle aches, and extreme fatigue, can be particularly debilitating.

Dr. Claire Agathou, a GP at The Wellington Hospital, outlines the key stages of the illness. She explains that the onset is marked by sudden and intense symptoms, followed by a physically demanding phase with high fever and profound exhaustion. Recovery can be slow, often taking weeks, with lingering fatigue and a cough. Women may also experience changes to their menstrual cycle.

While most people recover with rest and time, Dr. Agathou advises seeking medical attention if symptoms don’t improve after 7-10 days, worsen after initial improvement, or include ongoing high fever, chest pain, increasing breathlessness, confusion, dehydration, or severe weakness. Those at higher risk, including pregnant women, individuals with asthma, heart disease, diabetes, autoimmune or thyroid conditions, and older adults, should seek medical advice earlier. Any new palpitations, fainting or prolonged exhaustion that interferes with daily life should also be checked. A persistent cough, reduced appetite, weight loss, bowel or mood changes could warrant a GP visit even after feeling better from the illness.

Health officials urge the public to prioritize rest, hydration, and a gradual return to activity to avoid setbacks during recovery.

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