Polio this week as of 2 September 2021

Polio this week as of 02 September 2021

• Summary of new WPV and cVDPV viruses this week (AFP cases and ES positives):

  • Pakistan: one WPV1 positive environmental sample
  • Ethiopia: two cVDPV2 cases
  • Gambia: four cVDPV2 positive environmental samples
  • Liberia: one cVDPV2 positive environmental sample
  • Mali: one cVDPV2 case
  • Mauritania: two cVDPV2 positive environmental samples
  • Niger: one cVDPV2 positive environmental sample
  • Nigeria: twenty-three cVDPV2 cases and fifteen cVDPV2 positive environmental samples
  • Senegal: two cVDPV2 positive environmental samples
  • Sierra Leone: one cVDPV2 case
  • Tajikistan: one cVDPV2 case