Reported adenovirus infection surveillance for Norway (NOR) — — latest record 2026-10-26
As of 26 October 2026, Norway has reported 2,301 adenovirus infection cases in 2026, compiled from figures published by Folkehelseinstituttet. No 2025 figure has been reported.
Of the 3 countries reporting adenovirus infection to ENCLAI in 2026, Norway accounts for 55.3% of reported cases and ranks 1 by case count.
ENCLAI has logged 1,120 surveillance records for adenovirus infection in Norway in 2026, with the most detailed reporting in Mar 2026 (160 records). 96 of those arrived in the last 30 days; the case counts run to 2026-10-26. 1 distinct surveillance sources reported this pair in 2026.
Reporting authorities for these counts: Folkehelseinstituttet — MSIS laboratory database (Allvis open API)
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| Year | Reported cases | Share of worldwide reports |
|---|---|---|
| 2023 | not reported | — |
| 2024 | not reported | — |
| 2025 | not reported | — |
| 2026 (year to date) | 2,301 | 55.3% |
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 adenovirus infection 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 |
|---|---|---|
| Mar 2026 | 160 | 1 |
| Apr 2026 | 128 | 1 |
| May 2026 | 128 | 1 |
| Jun 2026 | 160 | 1 |
| Jul 2026 | 128 | 1 |
| Aug 2026 | 160 | 1 |
| Sep 2026 | 128 | 1 |
| Oct 2026 | 128 | 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. 96 records were logged in the last 30 days.
Areas within Norway with the most adenovirus infection records this year:
| Area | Records |
|---|---|
| Agder | 70 |
| Akershus | 70 |
| Buskerud | 70 |
| Finnmark | 70 |
| Innlandet | 70 |
Adenovirus infection in Norway: 677 reported cases in the 90 days to 19 October, 260 of them in the 30 days to 19 October, 238 in the 30 days before that. Counts are as reported by the originating health authorities for
| Country | 2026 cases | Trend |
|---|---|---|
| Finland | 1,847 | ▲ Rising · 2025 |
| Bermuda | 13 |
| Disease | 2026 cases | Trend |
|---|---|---|
| Rhinovirus infection | 28,069 | |
| Seasonal influenza | 16,080 | ▲ Rising · 2025 |
| Respiratory syncytial virus infection | 14,243 | ▲ Rising · 2025 |
| COVID-19 | 5,329 | ▼ Declining · 2025 |
| Human metapneumovirus infection | 4,256 |
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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.
