Reported legionnaires' disease surveillance for Finland (FIN) — ▲ Rising · 2025 — latest record 2026-11-07
As of 1 November 2026, Finland has reported 46 legionnaires' disease cases in 2026, compiled from figures published by Terveyden ja hyvinvoinnin laitos (Finnish Institute for Health and Welfare). The full year 2025 closed at 56 cases. 2025 closed 44% above the 2023–2024 average, which is why the trend reads “Rising”.
Of the 10 countries reporting legionnaires' disease to ENCLAI in 2026, Finland accounts for 0.9% of reported cases and ranks 8 by case count.
ENCLAI has logged 159 surveillance records for legionnaires' disease in Finland in 2026, with the most detailed reporting in May 2026 (125 records). 16 of those arrived in the last 30 days; the case counts run to 2026-11-01. 1 distinct surveillance sources reported this pair in 2026.
Reporting authorities for these counts: Terveyden ja hyvinvoinnin laitos (Finnish Institute for Health and Welfare)
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| Year | Reported cases | Share of worldwide reports |
|---|---|---|
| 2023 | 34 | 0.8% |
| 2024 | 44 | 0.7% |
| 2025 | 56 | 0.6% |
| 2026 (year to date) | 46 | 0.9% |
Reporting bounds and case definitions vary; historical baselines are a separate comparison measure. Worldwide share compares this country's reported figure with the sum of all countries reporting legionnaires' disease to ENCLAI for that year. "Incomplete year" means our sources cover less than ten months of that year, so no full-year figure is shown; "outbreak total to date" is a running total since an outbreak began, not a count for one year.
| Month | Records | Reporting sources |
|---|---|---|
| Apr 2026 | 1 | 1 |
| May 2026 | 125 | 1 |
| Jun 2026 | 4 | 1 |
| Aug 2026 | 8 | 1 |
| Sep 2026 | 5 | 1 |
| Oct 2026 | 14 | 1 |
| Nov 2026 | 2 | 1 |
A record is one dated surveillance publication or one row of an official table; a month with many records is a month with detailed reporting, not necessarily more cases. 16 records were logged in the last 30 days.
Areas within Finland with the most legionnaires' disease records this year:
| Area | Records |
|---|---|
| Uusimaa | 41 |
| North Savo | 20 |
| Southwest Finland | 17 |
| Pirkanmaa | 11 |
| North Ostrobothnia | 9 |
| Country | 2026 cases | Trend |
|---|---|---|
| Germany | 2,429 | ▲ Rising · 2025 |
| Spain | 1,219 | ≈ Stable · 2025 |
| Taiwan | 573 | ▲ Rising · 2025 |
| Poland | 428 | ≈ Stable · 2025 |
| Hong Kong | 153 |
| Disease | 2026 cases | Trend |
|---|---|---|
| Seasonal influenza | 24,771 | ▲ Rising · 2025 |
| Chlamydia infection | 5,488 | ▼ Declining · 2025 |
| Respiratory syncytial virus infection | 4,364 | ▲ Rising · 2025 |
| Norovirus gastroenteritis | 3,289 | ▲ Rising · 2025 |
| COVID-19 | 2,938 | ▼ Declining · 2025 |
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