Summary of new poliovirus this week

Pakistan: two WPV1 cases and 21 positive environmental samples

Burkina Faso: one cVDPV2-positive environmental sample

DR Congo: one cVDPV2-positive environmental sample

Guinea: one cVDPV2 case and 11 cVDPV2-positive environmental samples

Mali: one cVDPV2 case

Mauritania: one cVDPV2-positive environmental sample

Nigeria: three cVDPV2-positive environmental samples

Somalia: one cVDPV2 case

Yemen: two cVDPV2 cases

Zimbabwe: four cVDPV2-positive environmental samples