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2023 global overview of positive poliovirus isolates, including types 1, 2, and 3 wild poliovirus and circulating vaccine-derived poliovirus

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Clinical acute flaccid paralysis (AFP) and environmental surveillance (ES) poliovirus detections are depicted. On the left, there is a per-country list of the latest detections of AFP and ES. Data source: from WHO HQ as of February 27, 2024; figure adapted from internal WHO HQ figures; map creation April 5, 2024; map produced by WHO GIS Centre for Health, DNA/DDI. Dotted and dashed lines on maps represent approximate border lines for which there may not yet be full agreement. (Source: Lopez Cavestany R, Eisenhawer M, Diop OM, Verma H, Quddus A, Mach O. The last mile in polio eradication: program challenges and perseverance. Pathogens 2024;13[4]:323. Creative Commons Attribution 4.0 International [CC BY 4.0] license, creativecommons.org/licenses/by/4.0.)