Summary of new polioviruses this week, cases and positive environmental isolates:
Pakistan: 30 WPV1-positive environmental samples
Chad: one cVDPV2 case
Côte d'Ivoire: two cVDPV2-positive environmental samples
DR Congo: one cVDPV2 positive environmental sample
Egypt: two cVDPV2 positive environmental samples
Nigeria: three cVDPV2 cases and six positive environmental samples
Zimbabwe: three cVDPV2-positive environmental samples
