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

• Afghanistan: eight WPV1-positive environmental samples
• Pakistan: 25 WPV1-positive environmental samples
• Chad: three cVDPV2 cases and three cVDPV2-positive environmental samples
• Djibouti: seven cVDPV2-positive environmental samples
• Ethiopia: eleven cVDPV2 cases
• Niger: one cVDPV2 case
• Occupied Palestinian territory: one cVDPV2-positive environmental sample
• Papua New Guinea: one cVDPV2-positive environmental sample