Reported seasonal influenza surveillance for Portugal (PRT) — ▲ Rising · 2025 — latest record 2026-11-06
As of 26 October 2026, Portugal has reported 3,959 seasonal influenza cases in 2026, as published by ECDC EU/EEA Respiratory Virus Weekly Data (GitHub). The full year 2025 closed at 28,768 cases. 2025 closed 109% above the 2023–2024 average, which is why the trend reads “Rising”.
Of the 45 countries reporting seasonal influenza to ENCLAI in 2026, Portugal accounts for 0.1% of reported cases and ranks 19 by case count.
ENCLAI has logged 348 surveillance records for seasonal influenza in Portugal in 2026, with the most detailed reporting in Apr 2026 (249 records). 10 of those arrived in the last 30 days; the case counts run to 2026-10-26. 3 distinct surveillance sources reported this pair in 2026.
Reporting authorities for these counts: ECDC EU/EEA Respiratory Virus Weekly Data (GitHub)
Cited reference facts about the disease, not derived from the surveillance counts on this page. Full set on the Seasonal influenza page.
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 | 12,795 | 1.6% |
| 2024 | 14,786 | 1.3% |
| 2025 | 28,768 | 0.2% |
| 2026 (year to date) | 3,959 | 0.1% |
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 seasonal influenza 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 | 249 | 2 |
| May 2026 | 5 | 2 |
| Jun 2026 | 58 | 1 |
| Jul 2026 | 2 | 1 |
| Aug 2026 | 14 | 2 |
| Sep 2026 | 8 | 2 |
| Oct 2026 | 10 | 2 |
| Nov 2026 | 2 | 2 |
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. 10 records were logged in the last 30 days.
| Country | 2026 cases | Trend |
|---|---|---|
| China | 2,235,702 | |
| Australia | 269,750 | |
| Germany | 186,937 | ▲ Rising · 2025 |
| Ukraine | 33,426 | ▲ Rising · 2025 |
| Canada | 30,717 |
| Disease | 2026 cases | Trend |
|---|---|---|
| Respiratory syncytial virus infection | 2,731 | ≈ Stable · 2025 |
| COVID-19 | 1,804 | ▼ Declining · 2025 |
| Mpox (monkeypox) | 68 (outbreak total to date) | |
| Measles | 9 | ▼ Declining · 2025 |
Track seasonal influenza in Portugal live — alerts, exports and sub-national drill-down: start a 7-day free trial or request a demo.
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.
