Wild Polio Virus Summary:
New wild poliovirus isolates reported this week:
AFP cases: 1
Environment: 16
Others: 1
New cVDPV isolates reported this week:
AFP cases: 27
Environment: 26
Others: 8

Summary of new poliovirus cases and positive environmental samples:
Afghanistan: seven WPV1-positive environmental samples
Algeria: one cVDPV2-positive environmental sample
Chad: five cVDPV2 cases
Côte d’Ivoire: three cVDPV2-positive environmental samples
DR Congo: four cVDPV1 cases, four cVDPV2 cases and five cVDPV2 positive environmental samples
Guinea: five cVDPV2 cases and one positive environmental sample
Kenya: three cVDPV2-positive environmental samples
Nigeria: eight cVDPV2 cases and nine positive environmental samples
Pakistan: one WPV1 case and nine positive environmental samples
Somalia: one cVDPV2 case and one positive environmental sample
Tanzania: one cVDPV2-positive environmental sample
Zimbabwe: two cVDPV2-positive environmental samples

Afghanistan: No wild poliovirus type 1 (WPV1) cases or positive environmental samples were reported this week. There have been only six WPV1 cases reported this year.

Pakistan: One wild poliovirus type 1 (WPV1) cases and nine WPV1 positive environmental samples were reported this week There have been five WPV1 cases reported this year.

Officially reported WPV1 and cVDPV cases as of November 8, 2023:
Wild poliovirus (WPV)
Total global WPV1 cases in 2023: 11 (compared with 30 for the same period in 2022)
Total global WPV1 cases in 2022: 30
Circulating vaccine-derived poliovirus (cVDPV) cases
Total global cVDPV cases in 2023: 369 (compared with 510 for the same period in 2022)
Total global cVDPV cases in 2022: 877

Most recently reported WPV1 case: October 15, 2023, in Pakistan