Summary of new polioviruses this week, cases and positive environmental isolates:

Pakistan: four WPV1 cases and 50 WPV1-positive environmental samples Angola: one cVDPV2 case French Guiana (France): three cVDPV3-positive environmental samples Niger: four cVDPV2-positive environmental samples Nigeria: four cVDPV2 cases South Sudan: one cVDPV2 case and two cVDPV2-positive environmental samples Spain: one cVDPV2-positive environmental sample Yemen: one cVDPV2-positive environmental sample.