Key Points

Acute Respiratory Infections

• Moderate impact on healthcare utilization for acute respiratory infections
• Peak activity in weeks 2025–52, primarily linked to the flu epidemic

Bronchiolitis

• 6-week epidemic
• Epidemic peak in week 2025-51
• Less impact compared to the previous two seasons: decline in indicators since the introduction of monoclonal antibodies in 2023

Flu

• 11-week epidemic
• Epidemic peak in week 52 of 2025
• Moderate impact in primary care and high impact in hospitals, particularly regarding hospitalizations
• Indicators lower than in the two previous seasons
• Co-circulation of the A(H1N1)pdm09 and A(H3N2) viruses
• Vaccination coverage well below WHO targets in the general population and among healthcare workers in long-term care facilities; high among residents in long-term care facilities

COVID-19

• More active circulation between June and October 2025.
• Peak activity in September 2025 (Week 38, 2025)
• No resurgence during the winter of 2025–2026
• Indicator levels are low and below those of previous years
• People aged 65 and older are most affected, both in hospitals and in long-term care facilities
• Vaccination coverage in long-term care facilities is insufficient among residents and very insufficient among healthcare workers

All-cause mortality

• Significant excess of all-cause deaths from week 2026-01 through week 2026-06