1. Data in WHO HQ as of 09 October 2012 Highlights of New Wild Poliovirus Cases The boundaries and names shown and the designations used in the maps in this document do not imply the expression of any opinion whatsoever on the part of the World Health Organization concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. Dotted lines on maps represent approximate border lines for which there may not yet be full agreement.  WHO 2012. All rights reserved 8 new officially reported WPV cases 3 cases (3 W1) in 3 new districts in Pakistan 2 cases (2 W1) in a previously-infected district in Afghanistan 3 cases (3 W1) in 3 previously-infected districts in Nigeria New district refers to areas that were previously without wild polio virus in 2012.

2. Wild Poliovirus 1, Previous 12 Months* Country with WPV case in previous 6 months Endemic country Country with WPV case 6-12 months ago Wild virus type 1 Wild virus type 3 Wild virus type 1/3 1 Excludes viruses detected from environmental surveillance and vaccine derived polioviruses. 1 WPV1 in Gilgit Baltistan, date of onset 11 August 2012, does not appear on the map. *10 Oct 2011 – 09 Oct 2012 Data in WHO HQ as of 09 October 2012

3. Endemic country Wild Poliovirus 1, Previous 6 Months* Country with WPV case in previous 6 months Wild virus type 1 Wild virus type 3 *10 Apr – 09 Oct 2012 1 Excludes viruses detected from environmental surveillance and vaccine derived polioviruses. 1 WPV1 in Gilgit Baltistan, date of onset 11 August 2012, does not appear on the map. Data in WHO HQ as of 09 October 2012

4. Wild Poliovirus Infected Districts 1, Previous 6 Months* District infected with wild polio virus type 1 District infected with wild polio virus type 3 District infected with both types of wild poliovirus Data in WHO HQ as of 09 October 2012 *10 Apr – 09 Oct 2012 1 Excludes viruses detected from environmental surveillance and vaccine derived polioviruses. 1 WPV1 in Gilgit Baltistan, date of onset 11 August 2012, does not appear on the map.

5. Wild Poliovirus 2007 - 2012 Data in WHO HQ as of 09 Oct 2012

6. Wild Poliovirus Cases by Type 2011 & 2012 - Year to Date Comparison Data in WHO HQ as of 09 October 2012

7. 1 Circulating Vaccine-derived poliovirus (cVDPV) is associated with 2 or more cases of AFP. Niger 2006, Niger 2009, Niger 2010, Chad 2010 cVDPVs are linked to the Nigeria outbreak. Kenya 2012 cVDPVs are linked to the Somalia outbreak. VDPV type 2 cases with greater than or equal to 6nt difference from sabin in VP1; VDPV types 1 and 3 cases with greater than or equal to 10nt difference from sabin in VP1 are reported here. Figures exclude VDPV from non-AFP sources. Nigeria figures include the following cases with WPV1/cVDPV2 mixture: 2005 – 2, 2006 - 1, 2007 - 1, 2008 – 3, 2009 - 1, 2011 – 1; WPV3/cVPDV2 mixture 2007 - 2. *Figures include multiple emergences and transmission chains. **cVDPVs due to importation. Circulating Vaccine-derived Poliovirus 1, 2000-2012 Data in WHO HQ as of 09 October 2012

8. Circulating Vaccine-derived Poliovirus*, Previous 6 Months** Number of cVDPV cases **10 Apr – 09 Oct 2012 *Circulating Vaccine-derived poliovirus (cVDPV) is associated with 2 or more cases of AFP. VDPV type 2 cases with greater than or equal to 6nt difference from sabin in VP1; VDPV types 1 and 3 cases with greater than or equal to 10nt difference from sabin in VP1 are reported here. Figures exclude VDPV from non-AFP source. Figures may include different chains of transmission. Monthly distribution of cases by country cVDPV2 (12 cases) cVDPV1 (0 cases) cVDPV3 (0 cases) Data in WHO HQ as of 09 October 2012

9. Comparison of 2011 and 2012 Data Year to Date (01 Jan to 09 Oct) Data for 2011 as of 11 October 2011 and for 2012 as of 09 October 2012. Data in WHO HQ as of 09 October 2012

10. AFP Cases Pending Classification, 2011 Countries with cases pending final classification: Fiji (3), India (2), Solomon Islands (1) Data in WHO HQ as of 09 October 2012