1. 27/08/2019
Highlights of New Wild Poliovirus and cVDPV Positives Reported Globally this Week
1Environmental sampling, contacts of AFP cases, community sampling.
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Data in WHO HQ as of 14 Nov. 2017
Data in WHO HQ as of 30 Nov 2010

2. Global Wild Poliovirus & cVDPV Cases1, Previous 12 Months2
27/08/2019
Global Wild Poliovirus & cVDPV Cases1, Previous 12 Months2
Wild poliovirus type 1
cVDPV type 2
Endemic country
1Excludes viruses detected from environmental surveillance 2Onset of paralysis 15 November 2016 – 14 November 2017
Data in WHO HQ as of 14 Nov. 2017
Data in WHO HQ as of 30 Nov 2010

3. Global Wild Poliovirus & cVDPV Cases1, Previous 6 Months2
27/08/2019
Global Wild Poliovirus & cVDPV Cases1, Previous 6 Months2
Wild poliovirus type 1
cVDPV type 2
Endemic country
2Current rolling 6 months: 15 May 2017 – 14 November 2017
3Same period previous year: data reported from 15 May 2016
1Excludes viruses detected from environmental surveillance
2Onset of paralysis 15 May 2017 – 14 November 2017
Data in WHO HQ as of 14 Nov. 2017
Data in WHO HQ as of 30 Nov 2010

4. Global Wild Poliovirus 2012 - 2017
27/08/2019
Global Wild Poliovirus
Data in WHO HQ as of 14 Nov. 2017
Data in WHO HQ as of 30 Nov 2010

5. Global Circulating Vaccine-derived Poliovirus Cases1,2,3, 2000 - 2017
27/08/2019
Data in WHO/HQ as of 14 Nov. 2017
1For cVDPV definition see Niger 2006, Niger 2009, Niger 2010, Chad 2010 cVDPVs are linked to the Nigeria outbreak. Kenya 2012 cVDPVs are linked to the Somalia outbreak. Nigeria figures include cases with WPV1/cVDPV2 mixture: , , , , , ; WPV3/cVPDV2 mixture: cVDPV2 from a contact of a WPV1 case in Nigeria not included in country and global case count. 3Figures include multiple emergences and transmission chains.
Data in WHO HQ as of 30 Nov 2010

6. Global Surveillance Indicators: Year to Date Comparison
2016 & 2017: 01 January to 14 November 2017*
27/08/2019
*Data for 2016 as of 15 Nov and for 2017 as of 14 Nov. 2017
For data at country, regional and global levels from 2000 onwards, see the WHO website at
Data in WHO HQ as of 30 Nov 2010