• Eradicating Polio

  • Polio Facts

    • Polio mainly affects children under age 5
    • There is no cure, but polio is preventable with a vaccine
    • Only 3 countries remain endemic
    • We've reduced cases by 99.9% since 1988
    • Until we end polio forever, every child is at risk
  • Why Zero Matters

    New wild poliovirus cases reported this week: 0
    Total number of wild poliovirus cases in 2017: 9
    Total number of wild poliovirus cases in 2016: 37


    New cVDPV cases reported this week: 0
    Total number of cVDPV cases in 2017: 40
    Total number of cVDPV cases in 2016: 5

  • Headlines
    · Read the latest polio updates from WHO Pakistan and from WHO Afghanistan to see information on cases, surveillance and vaccination campaigns. 
    · The remarkable impact of frontline workers: read about Khalida, a frontline health worker in Karachi, Pakistan, and her incredible efforts to forge a path to trust in vaccines. 
    Summary of newly-reported viruses this week: No new viruses reported this week. 
     
    Afghanistan
    · No new wild poliovirus type 1 (WPV1) cases were reported in the past week. The total number of WPV1 cases for 2017 remains six. The most recent case in the country had onset of paralysis on 10 July, from Zabul province, neighbouring Kandahar province and Pakistan. 
    · Afghanistan continues to coordinate activities with neighbouring Pakistan, to address both cross-border transmission and focus on reaching mobile populations with oral polio vaccine (OPV). Transmission linking both countries runs primarily across three corridors, namely: eastern Afghanistan and Khyber-Peshawar, Pakistan; greater Kandahar/Hilmand and Quetta, Pakistan; and, Paktika/Patkya/Khost and Khyber Pakhtunkhwa/Federally Administered Tribal Areas, Pakistan. 
     
    Pakistan
    · No new wild poliovirus type 1 (WPV1) case was reported in the past week; the total number of WPV1 cases for 2017 remains three. The most recent case in the country had onset of paralysis on 11 June, from Killa Abdullah, Balochistan. 
    · A special vaccination round is being implemented during August 2017 targeting areas with recent polio cases and positive environmental samples. These include Rawalpindi / Islamabad and demographically connected areas of Khyber Pakhtunkhwa, Quetta Block and parts of Karachi.
    · Under the National Emergency Action Plan for polio eradication, the country is planning to implement two nation-wide and two sub-national vaccination rounds from September to December 2017.
     
    Nigeria
    · No new cases of wild poliovirus type 1 (WPV1) were reported in the past week. The total number of WPV1 cases for 2016 remains four and no cases have been reported in 2017. The most recent case had onset of paralysis on 21 August 2016 in Monguno Local Government Area (LGA), Borno. 
    Nigeria continues to implement emergency response to the detected WPV1 strain and circulating vaccine-derived poliovirus type 2 (cVDPV2) strains affecting the country (last detected in 2016). 
    · Detection of the polio cases in Nigeria underscores the risk posed by low-level undetected transmission and the urgent need to strengthen subnational surveillance.
     
    Lake Chad Basin 
    · The detection of wild poliovirus type 1 (WPV1) (Borno,Nigeria in 2016) and circulating vaccine-derived poliovirus type 2 (cVDPV2) (Borno and Sokoto provinces in Nigeria in 2016) continue to pose a risk to the neighbouring countries of the Lake Chad basin and hence an outbreak response plan is being implemented as part of the response to the Nigeria outbreak. 
    · Emergency outbreak response efforts continue across the Lake Chad basin, together with activities to fill subnational surveillance gaps across the region. 
     
    Central Africa 
    · No new cases of type 2 circulating vaccine-derived poliovirus (cVDPV2) were reported in the past week in the Democratic Republic of the Congo (DR Congo). The total number of cVDPV2 cases this year remains seven, in two separate outbreaks: in Haut Lomami province (five cases, with onset of paralysis of the most recent case on 13 June); and in Maniema province (two cases with onset of paralysis on 26 March and 18 April, with an additional isolate detected in a healthy individual with sample collection on 2 May). 
    · Confirmation of additional cases is not unexpected at this time. Outbreak response is taking place, including use of monovalent oral polio vaccine type 2 (mOPV2) in line with internationally-agreed outbreak response protocols, targeting more than 750,000 children under the age of five across the two provinces. 
    · The first mOPV2 round was implemented on 27-29 June in the two affected provinces; and the second mOPV2 round ran from 13-15 July in Haut Lomami and 20-22 July in Maniema. 
    Surveillance and immunization activities are being strengthened in neighbouring countries. 

    Officially reported wild poliovirus cases as of 22 Aug 2017
    Total global cases in 2017: 9 (compared with 21 for the same period in 2016)
    Total in endemic countries in 2017: 9 (compared with 21 for the same period in 2016)
    Total in non-endemic countries in 2017: 0 (compared with 0 for the same period in 2016)
    · Afghanistan: 6 cases in 2017 (compared with 6 for the same period in 2016), onset of paralysis of most recent case: 10-Jul-17
    · Pakistan: 3 cases in 2017 (compared with 13 for the same period in 2016), onset of paralysis of most recent case: 11-Jun-17
    · Nigeria: 0 case in 2017 (compared with 2 for the same period in 2016), onset of paralysis of most recent case: 21-Aug-16
     
    · Total global cases in 2016: 37
    · Total in endemic countries: 37
    · Total in non-endemic countries: 0
    Please refer to the attached weekly global update for country-level details of 2016 cases.