Reported hepatitis d surveillance for Finland (FIN) — ▲ Rising · 2025 — latest record 2026-10-17
As of 1 October 2026, Finland has reported 10 Hepatitis D cases in 2026, compiled from figures published by Terveyden ja hyvinvoinnin laitos (Finnish Institute for Health and Welfare). The full year 2025 closed at 13 cases. 2025 closed 333% above the 2023–2024 average, which is why the trend reads “Rising”.
Of the 5 countries reporting hepatitis d to ENCLAI in 2026, Finland accounts for 5.5% of reported cases and ranks 3 by case count.
ENCLAI has logged 30 surveillance records for hepatitis d in Finland in 2026, with the most detailed reporting in May 2026 (20 records). 7 of those arrived in the last 30 days; the case counts run to 2026-10-01. 1 distinct surveillance sources reported this pair in 2026.
Reporting authorities for these counts: Terveyden ja hyvinvoinnin laitos (Finnish Institute for Health and Welfare)
One email a day: what changed in official disease reporting worldwide, with the source named for every number. Reported facts only — no forecasts and no interpretation.
| Year | Reported cases | Share of worldwide reports |
|---|---|---|
| 2023 | 1 | 1.4% |
| 2024 | 5 | 3.9% |
| 2025 | 13 | 5.0% |
| 2026 (year to date) | 10 | 5.5% |
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 hepatitis d 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 |
|---|---|---|
| May 2026 | 20 | 1 |
| Aug 2026 | 3 | 1 |
| Oct 2026 | 7 | 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. 7 records were logged in the last 30 days.
Areas within Finland with the most hepatitis d records this year:
| Area | Records |
|---|---|
| Uusimaa | 18 |
| North Savo | 3 |
| Kymenlaakso | 1 |
| North Ostrobothnia | 1 |
| Paijat-Hame | 1 |
| Country | 2026 cases | Trend |
|---|---|---|
| Australia | 85 | |
| China | 77 | |
| Germany | 8 | |
| Lithuania | 1 | ▲ Rising · 2025 |
| 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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One email a day: what changed in official disease reporting worldwide, with the source named for every number. Reported facts only — no forecasts and no interpretation.
