Flu Season Update: Health Experts Caution About Ongoing Risks

Health professionals are indicating that the influenza season for 2025-2026 is still very much active. Dr. Michael Glazier, the chief medical officer and pediatrician at Bluebird Kids Health in Florida, mentions that preparations should continue for the virus’s persistence, even as temperatures rise.

This particular season is following a typical historical pattern, where influenza A tends to be the first and most aggressive variant circulating. Dr. Glazier emphasized that, as of mid-February, alongside the ongoing prevalence of influenza A, cases of influenza B are starting to appear. This isn’t surprising and suggests that both strains may continue to circulate into the spring.

While the timing of these waves fits historical norms, the intensity does not. This year has seen the emergence of a new strain of influenza A H3N2, dubbed subclade K. Dr. Glazier notes that this strain poses unique challenges. Since it’s relatively new, many people lack immunity from prior infections, and vaccination rates have been declining nationally.

Additionally, current vaccines show less effectiveness against this particular strain. Initially thought to be a mild season, it’s turning out to be more severe than anticipated. The CDC has categorized this season as particularly serious, especially for children, with around 60 reported childhood deaths attributed to subclade K this year alone.

Dr. Glazier reassures that it’s not too late to get a flu shot this season. He highlights that even individuals who have had influenza A can still contract influenza B. Even if the vaccine doesn’t match the circulating strain perfectly, it still significantly helps reduce the severity and duration of the illness.

Feeling under the weather? Take note of your symptoms. The flu typically includes high fever, chills, body aches, night sweats, headaches, and stomach pain—distinct from symptoms of seasonal allergies. Parents are encouraged to pay close attention to persistent fevers in children, especially if they don’t respond to common medications like acetaminophen or ibuprofen, and to ensure adequate hydration.

According to Dr. Glazier, children are more vulnerable to dehydration when sick, exacerbating their symptoms. Taking care of one’s immune system through proper rest, hydration, nutrition, and hygiene remains essential for combating viruses.