Overview
- Since the start of surveillance in October, about 5.8 million acute respiratory infections have been recorded, with weekly incidence at 17.1 per 1,000 people.
- Children aged 0–4 show the highest incidence at roughly 50 per 1,000, while older adults are most represented in hospital admissions.
- Regional data indicate rising emergency‑department visits and hospitalizations for respiratory syndromes compared with the same week last season.
- Sequencing confirms A(H3N2) subclade K as the dominant strain, which appears more transmissible without signs of higher average clinical severity.
- Health leaders urge vaccination and basic precautions, clinicians report more gastrointestinal symptoms and occasional second fever peaks, and medical societies warn against self-prescribed antibiotics.