World Health Organization, Avenue Appia 20, 1211 Geneva, Switzerland
Global Polio Eradication Initiative
ESTIMATEDDate confidence: ESTIMATEDA target, not a fixed dateHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all ESTIMATED pins70% CONFIDENCEOverall confidence: 70%How well the pin's source and references back up its dates.Weighted average of how firmly 5 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 from 50% to 74% confidenceGPEI decided "to extend the timeline for certifying the eradication of wild poliovirus type 1 (WPV1)", with the revised strategy aiming at "certification of WPV1 eradication by end-2027"; a year alone is taken as its last day.[1]
The Global Polio Eradication Initiative's extended strategy sets certification of wild poliovirus type 1 eradication by the end of 2027, with transmission in Afghanistan and Pakistan meant to stop first. Both countries still report cases.
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