Summary of new polioviruses this week, cases and positive environmental isolates:
- Pakistan: 19 WPV1-positive environmental samples
- Algeria: two cVDPV2-positive environmental samples
- Chad: two cVDPV2 cases and one cVDPV2-positive environmental sample
- Nigeria: two cVDPV2-positive environmental samples
- Senegal: one cVDPV2-positive environmental sample
