Reported west nile fever surveillance for Ukraine (UKR) — ▼ Declining · 2025 — latest record 2026-10-20
As of 30 September 2026, Ukraine has reported 11 West Nile fever cases in 2026, compiled from figures published by Ukraine Public Health Center. The full year 2025 closed at 3 cases. 2025 closed 95% below the 2023–2024 average, which is why the trend reads “Declining”.
Of the 12 countries reporting west nile fever to ENCLAI in 2026, Ukraine accounts for 0.5% of reported cases and ranks 6 by case count.
ENCLAI has logged 20 surveillance records for west nile fever in Ukraine in 2026, with the most detailed reporting in Oct 2026 (20 records). 6 of those arrived in the last 30 days; the case counts run to 2026-09-30. 1 distinct surveillance sources reported this pair in 2026.
Reporting authorities for these counts: Ukraine Public Health Center — Form No. 1, infectious and parasitic diseases
Cited reference facts about the disease, not derived from the surveillance counts on this page. Full set on the West Nile fever 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 | 14 | 8.7% |
| 2024 | 99 | 25.2% |
| 2025 | 3 | 0.1% |
| 2026 (year to date) | 11 | 0.5% |
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 west nile fever 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 |
|---|---|---|
| Oct 2026 | 20 | 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. 6 records were logged in the last 30 days.
Areas within Ukraine with the most west nile fever records this year:
| Area | Records |
|---|---|
| Kharkivs’ka Oblast’ | 1 |
| Kyiv | 1 |
| Kyiv City | 1 |
| Poltava | 1 |
| Sumy | 1 |
| Country | 2026 cases | Trend |
|---|---|---|
| United States | 1,600 | |
| Greece | 462 | |
| Spain | 133 | ▼ Declining · 2025 |
| Italy | 46 (outbreak total to date) | |
| Romania | 14 (outbreak total to date) |
| Disease | 2026 cases | Trend |
|---|---|---|
| Seasonal influenza | 33,426 | ▲ Rising · 2025 |
| Lyme borreliosis | 5,259 | ▲ Rising · 2025 |
| Non-typhoidal salmonellosis | 2,806 | ≈ Stable · 2025 |
| Giardiasis | 2,534 | ≈ Stable · 2025 |
| Scabies | 2,480 | ≈ Stable · 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.
