The 2025 flu season is proving to be one of the most challenging in recent years, with a new influenza A(H3N2) variant, subclade K, spreading rapidly across the United States . As we enter the peak flu season, it is crucial to recognize the symptoms and understand the unique characteristics of this year's flu strain. By staying informed, you can take proactive measures to protect your health and the health of those around you.
The 2025 flu season is marked by a number of unusual symptoms, with experts noting that this year's strain is more severe and prolonged. Early signs of the flu include fever, cough, and sore throat, but the 2025 variant is also characterized by intense and longer-lasting symptoms . Health experts warn that the flu this year is more severe than in previous years, with record-high infections and hospitalizations, particularly among children and younger populations .
One of the most alarming aspects of this year's flu season is the rapid spread and severity of the symptoms. The CDC has reported that doctor visits for fever with cough or sore throat have surpassed the epidemic threshold, confirming that flu season has started early . This early onset, combined with the unique symptoms, makes it essential for individuals to remain vigilant and take preventative measures.
Infectious disease experts recommend staying informed about the top signs of the flu in 2025 and 2026, and how to distinguish flu symptoms from COVID-19 . Common symptoms to watch for include fever, chills, muscle aches, cough, congestion, runny nose, headaches, and fatigue. However, the 2025 variant, H3N2 subclade K, has been shown to cause more intense and longer-lasting symptoms, which can lead to complications if not treated promptly .
To stay healthy this flu season, it is important to understand how the flu spreads and recognize the symptoms early. The 2025 flu season is characterized by a rare second peak, which means that the risk of infection is sustained over a longer period . Additionally, the new variant is spreading early this season, making it crucial to get vaccinated and practice good hygiene .
