Attachments
Wild poliovirus type 1 (WPV1)
Cases: No new WPV-1 positive cases reported this week. In total, 39 WPV1-positive cases have been confirmed in 2025 (9 from Afghanistan and 30 from Pakistan in 2025).
Environment: No new WPV1 positive environmental samples reported this week. In total, 672 WPV1-positive environmental samples have been reported in 2025 (64 from Afghanistan and 608 from Pakistan).
Vaccine-derived poliovirus (VDPV)
Cases:
• cVDPV2: One new cVDPV2 case reported this week from Somalia from Kismayo district in Lower Juba province with a date of onset on 15th November 2025. The cVDPV2 case count in 2025 to date is 40 (30 from Yemen, 7 from Sudan, 2 from Somalia and 1 from Djibouti)
Environment
• cVDPV1: No new cVDPV1 isolates were reported this week. cVDPV1 were confirmed from 10 environmental samples in 2025 (all from Djibouti).
• cVDPV2: One new cVDPV2 isolates were reported this week from Somalia from Kismayo district in Lower Juba province with a date of collection on 1 st December 2025. To date, cVDPV2 was confirmed in 48 sewage water samples in 2025 (17 from Djibouti, 13 from Yemen, 10 from Somalia, 7 from occupied Palestinian territory, and 1 from Sudan).