print this page
  

Polio this week as of 17 September 2014

 

  • A synchronized regional mass polio vaccination campaign in central and western Africa is currently underway to vaccinate nearly 94 million children in 18 countries with oral polio vaccine (OPV).

  • In the Horn of Africa, current focus is on further strengthening microplans for upcoming outbreak response campaigns. Targeted approaches are being put in place and technical support has been deployed to the highest risk areas to ensure the best possible campaigns are implemented. 

  

 

  


Wild Poliovirus (WPV) cases

Total cases

Year-to-date 2014

Year-to-date 2013

Total in 2013 

Globally

178

264

416

- in endemic countries

159

79

160

- in non-endemic countries

19

185

256

  


Case breakdown by country


Countries

Year-to-date 2014

Year-to-date 2013


Total in
 2013

Date of most 
 recent case

 WPV1  WPV3   W1W3  Total   WPV1  WPV3  W1W3  Total 
Pakistan 145     145 28  
28 93 30-Aug-14
Afghanistan 8     8 4     4 14 17-Jun-14
Nigeria 6     6 47
  47 53 24-Jul-14
Somalia 5     5 169
  169 194 11-Aug-14
Equatorial Guinea 5     5       0  0 03-May-14
Iraq 2     2       0 0 07-Apr-14
Cameroon 5     5       0 4 09-Jul-14
Syria 1     1       0 35 21-Jan-14
Ethiopia      1     1 1     1 9 05-Jan-14
Kenya
    0 15     15 14 14-Jul-13
Total 178 0 0 178 264 0   264 416
Total in endemic countries      159 0 0 159 79 0
79 160   
 Total outbreak 19    0   0 19 185 0 0 185 256  

Data in WHO as of 17 September 2013 for 2013 data and 16 September 2014 for 2014 data.

Afghanistan

  • No new wild poliovirus type 1 (WPV-1) cases were reported in the past week. The total number of WPV-1 cases in 2014 remains 8. The most recent WPV-1 case had onset of paralysis on 17 June, from Khost province (linked to virus circulating in adjacent North Waziristan, Pakistan).
  • No new cases of type 2 circulating vaccine-derived poliovirus (cVDPV2) were reported in the past week. No cases of cVDPV have been reported in 2014.
  • Subnational Immunization Days (SNIDs) in the south are being held 21-23 September, using trivalent oral polio vaccine (OPV) in Helmand province and bivalent OPV elsewhere. The next National Immunization Days (NIDs) are scheduled for 19-21 October.

Nigeria

  • No new cases of wild poliovirus type 1 (WPV-1) were reported in the past week. Nigeria’s total case count for 2014 remains 6.The most recent case, which had onset of paralysis on 24 July in Sumaila Local Government Area (LGA), southern Kano, was the second to be reported in the LGA this year.
  • No new cases of type 2 circulating vaccine-derived poliovirus (cVDPV2) were reported in the past week. The total number of cVDPV2 cases for 2014 is 19. The most recent cVDPV2 case had onset of paralysis on 22 June, also in Kano.
  • The next subnational immunization days (SNIDs) are planned in the north for 20-23 September using bivalent OPV as part of synchronized campaigns across west and central Africa. 

Pakistan

  • Seven new wild poliovirus type 1 (WPV-1) cases were reported in the past week. Of these, 4 are from the Federally Administered Tribal Areas (FATA) (1 from North Waziristan and 3 from Khyber Agency) and 2 from Khyber Pakhtunkhwa (1 from Tank and 1 from Bannu). The 7th case had onset in the previously-uninfected district of Quetta in Balochistan province. This brings the total number of polio cases in 2014 to 145 compared to 28 in 2013 by this date. The most recent onset of paralysis was on 30 August in FATA.
  • No new circulating vaccine-derived poliovirus (cVDPV2) cases were reported in the past week. The latest case was in FR Bannu, Federally Administered Tribal Areas (FATA), with onset of paralysis on 27 May. The country has reported 18 cases of cVDPV2 in 2014.
  • Immunization activities are continuing with particular focus on known high-risk areas, in particular the newly opened areas in Khyber Pakhtunkhwa. At exit and entry points, 182 permanent vaccination points are being used to reach internally displaced persons.

Central Africa

  • No new wild poliovirus type 1 (WPV-1) cases were reported this week. In 2014, 10 cases have been reported in central Africa: 5 in Cameroon and 5 in Equatorial Guinea.
  • Synchronized National Immunization Days (NIDs) are planned across central Africa including Cameroon on 18-21 September using bivalent OPV, and the Democratic Republic of the Congo on 18-20 September, using trivalent OPV. On 19-21 September, there will be NIDs in Congo and Equatorial Guinea, both using bivalent OPV, and SNIDs in Chad, using trivalent OPV. Angola is planning National Child Health Days, using trivalent OPV, on 22 September - 5 October, and there will be NIDs in Gabon, using bivalent OPV, on 22-26 September.

Horn of Africa

  • No new cases of wild poliovirus type 1 (WPV-1) case have been reported in the past week in Somalia. The most recent case, which had onset of paralysis on 11 August, was from Hobyo district of Mudug province. The total number of cases that have been reported in the Horn of Africa in 2014 is six, 1 WPV-1 in Ethiopia (date of onset of paralysis on 14 January) and 5 WPV-1s in Somalia.
  • An outbreak response assessment will be carried out from 23 September by a team of interagency international experts.
  • National Immunization Days (NIDs) are planned in Yemen using trivalent OPV and in Somalia using bivalent OPV in September, and Subnational Immunization Days (SNIDS) in Ethiopia (exact dates to be confirmed). NIDs using bivalent OPV will be held in Kenya on 8-12 November and in Djibouti, Ethiopia, Somalia, South Sudan, Sudan, Uganda, and Yemen in November with dates to be confirmed.
  

Israel and West Bank and Gaza

  • Wild poliovirus type 1 (WPV-1) has not been detected in environmental samples in Israel, the West Bank and Gaza Strip in recent months; the most recent positive sample was collected in southern Israel on 30 March. Environmental samples collected since April have been negative.
  • National Immunization Days (NIDs) will be held in West Bank and Gaza in October.

Middle East

  • No new cases of wild poliovirus type 1 (WPV-1) were reported in the past week. Three cases of WPV-1 have been reported in the Middle East in 2014 - two in Iraq and one in Syria. The most recent case reported from Iraq occurred in Mada'in district, Baghdad-Resafa province, with onset of paralysis on 7 April. Syria’s most recent case had onset of paralysis on 21 January.
  • National Immunization Days (NIDs) are being conducted this week in Iraq using bivalent OPV. Activities are planned in Lebanon in September with dates to be confirmed. NIDs are planned in Syria, using bivalent OPV, and Jordan and Iraq, using trivalent OPV, on 19-23 October, and Subnational Immunization Days (SNIDs) in Turkey on 13-19 October using bivalent OPV. Dates are still to be confirmed for October campaigns in Egypt, Lebanon, and West Bank and Gaza. 
     

West Africa

  • No wild poliovirus type 1 (WPV-1) cases have been reported in West Africa in 2014. The most recent WPV-1 case in the region occurred in Tahoua province, Niger, with onset of paralysis on 15 November 2012.
  • No new cases of circulating vaccine derived polio virus (cVDPV) were reported this week. The last case of cVDPV was reported in Niger on 11 July 2013.
  • Even as polio programme staff across West Africa support efforts to control the Ebola outbreak affecting the region, a large scale synchronized vaccination campaign will be rolled out starting 19-23 September in those countries not affected by Ebola, using trivalent OPV.