Periodic monitoring Active

Key facts

  • Respiratory virus activity across EU/EEA countries remains at baseline levels, indicating limited respiratory virus circulation.
  • SARS-CoV-2 activity continues to be low in all age groups in primary and secondary care.
  • Respiratory syncytial virus (RSV) activity is low, at inter-seasonal levels.
  • Influenza virus activity is low, at inter-seasonal levels.
  • This week’s EuroMOMO pooled estimates of all-cause mortality for the 23 participating European countries show increased mortality in weeks 26 and 27, 2026. However, this increase only concerns some countries and is mainly seen in the age groups above 45 years.
  • All data are provisional and may be affected by reporting delays, incomplete country data or low testing volumes. A few countries with high testing rates can disproportionately influence pooled data. Further information is available under ‘Country notes’ and ‘Additional resources’.

Overview

Important: This European Respiratory Virus Surveillance Summary (ERVISS) publication follows the recent transition of reporting surveillance data from The European Surveillance System (TESSy) to EpiPulse Cases (EPC). As a result of this transition, we have identified a few data inconsistencies. We are actively working with individual countries to resolve these and any other issue that may arise to ensure high data quality. During this period, data updates to the GitHub repository will be paused. Thank you for your patience and understanding.

ECDC monitors respiratory illness rates and virus activity across the EU/EEA. Findings are presented in the European Respiratory Virus Surveillance Summary (ERVISS.org), which is updated weekly.

Key visualisation from the weekly bulletin are included below.

Visualisations

Figure 1. ILI/ARI virological surveillance in primary care - weekly test positivity

Figure 2. SARI virological surveillance in hospitals - weekly test positivity

Figure 3. Key indicators

Figure 4. ILI/ARI virological surveillance in primary care - pathogen type and subtype distribution

Figure 5. SARI virological surveillance in hospitals - pathogen type and subtype distribution

Figure 6. Genetically characterised influenza virus distribution, week 40, 2025 – week 27, 2026

Latest updates for this event

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