RSV activity in Finland
Current respiratory syncytial virus (RSV) activity in Finland, based on ECDC ERVISS weekly data from the Finnish Institute for Health and Welfare (THL).
Influenza: Low
Low
No. Flu activity in Finland is currently low and holding steady (as of 9 Aug 2026).
Data window: Week 32 · Aug 3 – Aug 9 · Source: ECDC (weekly) · Source on seasonal break, next data from week 40
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View the last 8 weeks
In week 32 of 2026, Influenza activity in Finland is classified as low.
Against week 31 the reported value is effectively unchanged (less than 5% difference).
Across the last 8 reported weeks the highest reading was week 26; the level was low in 8 of them.
The last 8 reported weeks
| Week | Relative | Level | vs prior week |
|---|---|---|---|
| Week 32 | 93 | Low | unchanged |
| Week 31 | 95 | Low | unchanged |
| Week 30 | 100 | Low | +12% |
| Week 29 | 89 | Low | −7% |
| Week 28 | 96 | Low | unchanged |
| Week 27 | 95 | Low | unchanged |
| Week 26 | 100 | Low | unchanged |
| Week 25 | 97 | Low | – |
Relative means the highest of these weekly values is set to 100. Exact incidence rates are in the app.
Current activity
- InfluenzaLowstableWeek 32Trend: stable · Week 32
- COVID-19LowstableWeek 32Trend: stable · Week 32
- RSVLowstableWeek 32Trend: stable · Week 32
What this means
In week 32 of 2026, activity of respiratory syncytial virus (RSV) in Finland is low. The trend, derived from clinical surveillance, is stable.
Data, context and methodology
The current picture for Finland is built on the European Respiratory Virus Surveillance Summary (ERVISS), published weekly by the European Centre for Disease Prevention and Control (ECDC). the Finnish Institute for Health and Welfare (THL) via its sentinel GP network and the National Reference Laboratory is the national public-health authority that feeds ERVISS with sentinel primary care and virology data.
ECDC ERVISS
ERVISS is ECDC's weekly pan-European surveillance summary for influenza, SARS-CoV-2 and RSV. National authorities, in Finland's case the Finnish Institute for Health and Welfare (THL) via its sentinel GP network and the National Reference Laboratory, submit harmonised indicators every week, which ECDC publishes in a standardised dataset on Thursdays. Using ERVISS rather than each country's native portal ensures cross-country comparability.
ILI / ARI consultation rates and positivity
the Finnish Institute for Health and Welfare (THL) via its sentinel GP network and the National Reference Laboratory operates a sentinel network of general practices that report weekly rates of patients consulting for influenza-like illness (ILI) or acute respiratory infection (ARI). A subset of patients is swabbed and tested by reference laboratories, producing pathogen-specific positivity rates for flu, SARS-CoV-2 and RSV.
Why this source
Combining consultation incidence with virological positivity yields a pathogen-specific weekly incidence signal (ILI × positivity / 100). This is the standard European methodology and provides a more robust view than either indicator alone: consultation rates capture illness burden, positivity confirms which pathogen is driving it.
Qualitative classification
The “low”, “moderate” and “high” categories follow seasonal reference values and epidemiological thresholds calibrated to match our classifications for other countries. The ILI × positivity / 100 product is scaled to comparable thresholds using a divisor of 3, which aligns European sentinel peaks with the consultation-equivalent scale used elsewhere. Data refreshes weekly when ECDC publishes the latest ERVISS update, typically on Thursdays.
Source and seasonal pattern by pathogen
- Influenza
- The classification is based on the ECDC ERVISS weekly reports, drawing on data from the Finnish Institute for Health and Welfare (THL) via its sentinel GP network and the National Reference Laboratory. Seasonally, infection waves in Finland typically peak between January and March; activity is usually markedly lower during the summer months.
- COVID-19
- The classification is based on the ECDC ERVISS weekly reports, drawing on COVID-19 surveillance data from the Finnish Institute for Health and Welfare (THL) via its sentinel GP network and the National Reference Laboratory. Seasonally, infection waves in Finland typically peak during winter, with occasional summer waves driven by new variants; activity is usually markedly lower in late spring between waves.
- RSV
- The classification is based on the ECDC ERVISS weekly reports, drawing on RSV surveillance data from the Finnish Institute for Health and Welfare (THL) via its sentinel GP network and the National Reference Laboratory. Seasonally, infection waves in Finland typically peak between December and February; activity is usually markedly lower in spring and summer.
Frequently asked questions
When is RSV season in Finland?
RSV activity in Finland typically begins rising in late autumn, peaks between December and February, and fades into spring. Post-pandemic seasons have been less predictable than pre-2020 patterns, with earlier or delayed peaks in some years. THL publishes RSV indicators within its weekly respiratory-virus surveillance alongside flu and SARS-CoV-2.
Who is most at risk from RSV in Finland?
The groups at highest risk of severe RSV are infants (particularly those under six months, preterm babies, and infants with underlying heart or lung disease) and older adults, especially those aged 75 and above or with chronic respiratory or cardiac conditions. In otherwise healthy children and adults, RSV usually resembles a common cold and resolves without complications.
Are RSV vaccines and nirsevimab available in Finland?
Since 2023, RSV vaccines have been authorised in the EU for older adults and for passive protection of infants. Finland has adopted the long-acting monoclonal antibody nirsevimab for infants entering their first RSV season within the national immunisation programme, and adult RSV vaccines are recommended for defined risk groups by THL. Uptake and clinical impact are monitored through weekly surveillance.
How is RSV tracked in Finland?
RSV surveillance in Finland combines sentinel GP data, virological testing at the National Reference Laboratory, and hospital-admission signals for severe paediatric and adult respiratory infection. Weekly results are published by THL and also reported to ECDC ERVISS, which lets Finland's RSV curve be compared directly with Sweden, Norway, and other EU/EEA countries.
How does RSV differ from flu in Finnish data?
In THL surveillance, flu and RSV appear as separate positivity streams within the same respiratory panel. RSV disproportionately affects infants and the very elderly, while flu burden spreads across age bands and is especially severe in older adults. Symptom overlap between the two viruses is wide, so the distinction relies on laboratory testing rather than clinical impression.
More situation reports
Data last refreshed: Aug 31, 2026, 11:11. Update cadence: weekly.
This page is not medical advice and does not replace consultation with a healthcare professional. For specific symptoms, please contact a medical professional.
About this page
Published by Renderei Martin GmbH, Berlin. No commercial interest in individual health recommendations. The app is optionally monetised via a freemium subscription.
Content is based exclusively on the linked official surveillance publications. Medical statements are curated against the guidance of RKI, ECDC and WHO.
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