Cumulative cases since outbreak start — ECDC bulletin dated 2026-08-27
•Accelerating: +56% cases over 7 days.
Official report date — in isolated zones, field onset typically precedes this by days to weeks.
The exact nature of this date (week of confirmation, transmission period, or bulletin publication date) is not specified by the source.
West Nile virus, 2026 European transmission season: 28 locally acquired human cases reported in France as at 27 August 2026, across 13 affected areas. Season total across 15 European countries: 869 cases in 123 affected areas (Italy 428, Greece 214, Spain 79, North Macedonia 49, Romania 45, France 28, Serbia 11, Croatia 3, Netherlands 3, Austria 2, Cyprus 2, Germany 2, Albania 1, Hungary 1, Kosovo* 1). Source: ECDC, Surveillance of West Nile Virus infections in humans in Europe, weekly report, week 35, produced 27 August 2026.
Case trend
First actions
- →Initiate field investigation within 48 h — verify signal with local authorities
- →Alert regional health offices and district focal points
- →Cross-check against WHO, ECDC and Africa CDC data for corroboration
- →Prepare situation report for the next surveillance meeting
Cite this page (Vancouver)
HealthWatch Global. West Nile fever outbreak — France [Internet]. 2026-08-27 [cited 2026 Aug 31]. Available from: https://healthwatch-global.com/en/outbreak/906bf26a-8867-4a9c-ad7c-976e4e2c5bab. Data source: ECDC.
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