Australia experienced an unprecedented influenza activity during the 2025–2026 season, with more than 457’000 confirmed cases and high transmission continuing through December 2025 and January 2026, a period when influenza typically subsides. The outbreak is largely driven by the H3N2 subclade K.
Practice regular hand hygiene. Reminder: At risk person should be vaccinated against influenza, RSV and SARS-Cov2 according to national guidelines.