CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins76% CONFIDENCEOverall confidence: 76%How well the pin's source and references back up its dates.Weighted average of how firmly 8 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better
ECDC CDTR week 39 published 25 September 2026: 'as at 23 September, 186 areas affected by West Nile virus have been identified in 16 countries'.[1]ECDC's week 39 threats report says 186 areas in 16 European countries have been affected by West Nile virus this season, with 1,569 locally acquired human cases as at 23 September 2026.
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