17 hours ago · Flu season in the US is heating up, driven by new subclade K variant This week also saw the season’s first reported death of a child from the flu in the United States.

2 days ago · A newly mutated H3N2 subclade K flu strain with seven mutations is spreading fast worldwide, causing rising cases and concerns over vaccine mismatch.

4 days ago · Published: 9 December 2025 A heavily mutated flu strain — A/H3N2 subclade K, often dubbed the “K-strain” or “superflu” — is now dominating the 2025–26 flu season and driving record …

23 hours ago · What are the symptoms? Flu signs and symptoms develop very rapidly and extreme tiredness is common, which differs from the symptoms of colds that occur more gradually, according …

2 days ago · What are the new symptoms? Even though it’s a new variant, Dr Aslam says, H3N2 presents as typical flu: fever, cough, sore throat, muscle aches, fatigue, and sometimes …

Nov 30, 2025 · As we get deeper into flu season, a new type of the influenza virus has been identified, the Centers for Disease Control and Prevention confirms.

1 day ago · Flu in the US The new mutated flu strain version of the H3N2 virus has also spread in the US. Last week there was an 8% increase in people testing positive for the flu virus. An estimated 2.9 …

3 days ago · A novel H3N2 flu variant, known as subclade K, has made an unexpected early appearance in the US, leading to a spike in infections. While this strain

5 days ago · “The CDC is warning that this flu season could be as bad as last year's flu season, which was the worst on record on hospitalizations and severe disease,” said Shereef Elnahal, president of …

May 2, 2025 · As flu season approaches, a new strain is making headlines, and experts are urging everyone to stay informed. Understanding the signs of this latest flu strain is critical not just for your …