This Week

Polio this week as of 12 August 2020

  • A cVDPV2 outbreak has been detected in Sudan. WHO and UNICEF are working closely with the Ministry of Health to plan and launch an effective outbreak response to limit virus spread.
  • Polio vaccination campaigns continue to resume in countries worldwide in the context of strict COVID-19 infection prevention and control measures. This week a campaign will go ahead in some areas of Pakistan, the second held in the nation since campaigns resumed in July.
  • Dr. Joanna Nikulin has been appointed as the Coordinator of the GPEI Hub in Amman, Jordan, effective immediately. Dr. Nikulin has over 15 years of experience in polio eradication, immunization and child health, and has served in some of the most challenging settings worldwide. She has been acting as the interim Hub Coordinator since September 2019.
  • Tributes have been paid by the polio programme to David Newberry, fondly remembered as the ‘father of the Core Group Polio Project’. After years spent eradicating smallpox and fighting guinea worm, David turned his determination and expertise to the battle against polio. Under his leadership, immense progress was made against polio in countries including Angola, India, Ethiopia, Uganda, Bangladesh and Nepal. Colleagues of David extend their deepest sympathies to his family and friends, and remember him fondly here.
  • Summary of new WPV and cVDPV viruses this week (AFP cases and ES positives):
      • Afghanistan: 14 cVDPV2 cases and eight cVDPV2 positive environmental samples
      • Pakistan: five WPV1 positive environmental samples and one cVDPV2 positive environmental sample
      • Chad: five cVDPV2 cases
      • Cote d’Ivoire: six cVDPV2 cases
      • Democratic Republic of the Congo (DR Congo): one cVDPV2 case
      • Ethiopia: two cVDPV2 cases
      • Mali: two cVDPV2 positive environmental samples
      • Sudan: three cVDPV2 positive environmental samples

See country sections below for more details.

NA: Onset of paralysis in most recent case is prior to 2017. Figures exclude non-AFP sources. In 2018, cVDPV includes all three serotypes 1, 2 and 3.
For Somalia: 1 cVDPV2 and cVDPV3 isolated from one AFP case.
cVDPV definition: see document “Reporting and classification of vaccine-derived polioviruses” at [pdf].

Weekly country updates as of 12 August 2020

  • No wild poliovirus type 1 (WPV1) cases were reported this week. There are 34 cases reported in 2020 so far while the total number of cases reported in 2019 remains 29.
  • 14 cVDPV2 cases were reported; one in Kabul, five in Laghman and eight in Nangahar. Eight cVDPV2 positive environmental samples were reported; two in Kabul, one in Khost, two in Kunar and three in Nangarhar.
  • Read the latest polio snapshot from Afghanistan to see information on cases, surveillance and vaccination campaigns.
  • No wild poliovirus type 1 (WPV1) cases were confirmed this week. There are 63 cases reported in 2020 so far while the total number of cases reported in 2019 cases remains 147.
  • 5 WPV1 positive environmental samples were reported; two in Balochistan province and three in Punjab province.
  • One cVDPV2 positive environmental sample was reported in Balochistan province.
  • Read the latest polio snapshot from Pakistan to see information on cases, surveillance and vaccination campaigns.
  • No case of circulating vaccine-derived poliovirus type 2 (cVDPV2) was reported this week. There have been three cases reported in 2020 so far. The total number of 2019 cases remain 130. These cases are from several outbreaks which occurred in 2019.
  • Read our Angola country pagefor more information.
  • No case of circulating vaccine-derived poliovirus type 2 (cVDPV2) was reported this week. There is one case in 2020, while the number of cases in 2019 remains eight. These cases are all linked to the Jigawa outbreak in Nigeria
  • The risk of further cVDPV2 spread across West Africa remains high.
  • Read our Benin country page for more information.
  • No case of circulating vaccine-derived poliovirus type 2 (cVDPV2) was reported this week. The number of cVDPV2 cases in the country currently stands at 10 and they are all linked to the Jigawa outbreak in Nigeria.
  • Read our Burkina Faso country page for more information.
  • No cases of circulating vaccine-derived poliovirus type 2 (cVDPV2) were reported this week. There are four cases reported in 2020 so far.
  • Read our Cameroon country page for more information.
  • No case of circulating vaccine-derived poliovirus type 2 (cVDPV2) was reported this week. There is one case reported in 2020 so far and 21 cases in 2019 from several outbreaks.
  • Read our Central African Republic country page for more information.
  • Five cases of circulating vaccine-derived poliovirus type 2 (cVDPV2) were reported this week; one in Logone Oriental, one in Mayo Kebbi Est, two in Tandjile and one in Wadi Fira. There are now 56 cases from two different outbreaks in the country, one being the Jigawa outbreak. There were 11 cases reported in 2019.
  • The risk of further cVDPV2 spread across the Lake Chad subregion remains high.
  • Read our Chad country page for more information.
  • Six cVDPV2 cases were reported this week; two from Gbokle-Nawa-San, two from Hambol, one from Haut Sassandra and one from Loh-Djiboua. The total number of cVDPV2 cases reported is 25.
  • Read our Côte d’Ivoire country page for more information.
  • One case of circulating vaccine-derived poliovirus type 2 (cVDPV2) was reported from Kwilu, bringing the number of cases reported in 2020 to 23. The total number of 2019 cases remains 88.
  • DR Congo continues to be affected by several other genetically-distinct cVDPV2s (notably in Kasai, Kwilu, Kwango and Sankuru provinces).
  • Read our Democratic Republic of the Congo country pagefor more information.
  • No cVDPV2 cases were reported this week. So far, there have been 11 cases reported in 2020, while the total number of 2019 cases remains 18.
  • The risk of further cVDPV2 spread across West Africa remains high.
  • Read our Ghana country page for more information.
  • No cVDPV2 cases were reported this week. There are eight cVDPV2 cases in the country.
  • Read our Guinea country page for more information.
  • Two cVDPV2 cases were reported this week in Ethiopia in Oromiya province. There have been 29 cases reported in Ethiopia so far.
  • Somalia has reported a total of 15 cVDPV cases (eight type 2, six type 3 and one coinfection of both type 2 and type 3) since the beginning of the outbreak in 2018. No new cases were reported in the country since May 2019.
  • Learn more about vaccine-derived polioviruses through this short animation or this ‘Coffee with Polio Experts’ video.
  • No circulating vaccine-derived poliovirus type 1 (cVDPV1) case was reported this week. There has been one case in 2020 so far. The total number of cases reported in 2019 remains three.
  • Read our Malaysia country page for more information.
  • No cVDPV2 case was reported this week. The total number of cVDPV2 cases reported remains one.
  • Two cVDPV2 positive environmental samples were reported this week from Bamako province.
  • Read our Mali country page country page for more information.
  • No circulating vaccine-derived poliovirus type 1 (cVDPV1) case was reported this week. There were six reported cases of cVDPV1 in 2019.
  • Read our Myanmar country page for more information.
  • No cVDPV2 cases was reported this week. There are four cVDPV2 cases in 2020.
  • Read our Niger country page for more information.

 

  • No case of circulating vaccine-derived poliovirus type 2 (cVDPV2) was reported this week. There were 18 cVDPV2 cases reported in 2019 and one in 2020.
  • Read our Nigeria country page country page for more information.
  • No cVDPV2 case was reported this week. The total number of cVDPV2 cases reported in 2020 remains one and 12 in 2019..
  • No cVDPV1 case was reported this week. There are two cVDPV1 cases in the country from 2019.
  • Read our Philippines country page for more information.
  • Three cVDPV2 positive environmental samples were reported this week from Khartoum.  Final genetic sequencing to ascertain their origin is pending.
  • In addition, advance notification has been received of two genetically-linked cVDPV2 cases in the country, with onset of paralysis on 7 March and 1 April, from South Darfur state (in the west of the country, close to the border with Chad), and Gedarif state in the east (close to the border with Eritrea and Ethiopia), linked to cVDPV2 currently circulating in Chad.  These cases will be officially reflected in next week’s data.
  • As a result of these detections, a cVDPV2 outbreak has been confirmed in Sudan.
  • The Ministry of Health, supported by Global Polio Eradication Initiative (GPEI) partners, is implementing a full field investigation, and planning an outbreak response.  The Acting Federal Minister of Health urged a high-quality and rapid response, with the Federal Expanded Programme on Immunization (EPI) Manager requesting immediate state-level planning with on-the ground EPI teams for outbreak response campaigns.  A national task force for outbreak response with representation by WHO and UNICEF has been established, and technical expertise from federal to state level being urgently deployed.  Response will be coordinated with other departments such as health promotion and health emergencies, and cross-border coordination with neighbouring countries is being implemented.
  • With large-scale population movements with other areas of central Africa and the Horn of Africa, more thorough region-wide risk assessment is being conducted.
  • Read our Sudan country page for more information.
  • No case of circulating vaccine-derived poliovirus type 2 (cVDPV2) was reported this week. There are nine cases reported in 2020 while the total number of cVDPV2 cases reported in 2019 remains eight.
  • Read our Togo country page for more information.
  • No case of circulating vaccine-derived poliovirus type 2 (cVDPV2) was reported this week. The total number of cVDPV2 cases reported in 2019 remains two.
  • Read our Zambia country page for more information.