New wild poliovirus isolates reported this week:
AFP cases: 1
Environment: 1
Others: 0
New cVDPV isolates reported this week:
AFP cases: 4
Environment: 0
Others: 3

Summary of new poliovirus cases and positive environmental samples:
Ethiopia: three cVDPV2 cases
Nigeria: one cVDPV2 case
Afghanistan: One WPV1 case and one WPV1 positive environmental sample were reported this past week.
Pakistan: No WPV1 cases and no WPV1 positive environmental samples were reported this past week

Officially reported WPV1 and cVDPV cases as of (April 15, 2025):
Wild poliovirus (WPV)
Total global WPV1 cases in 2025: 8 (2 in Afghanistan and 6 in Pakistan)
Total global WPV1 cases in 2024: 99
Total global WPV1 cases in 2023: 12
Total global WPV1 cases in 2022: 30
Total global WPV1 cases in 2021: 6
Total global WPV1 cases in 2020: 140
Circulating vaccine-derived poliovirus (cVDPV) cases
Total global cVDPV cases in 2025: 38
Total global cVDPV cases in 2024: 310
Total global cVDPV cases in 2023: 528
Total global cVDPV cases in 2022: 878

Most recently reported WPV1 cases this year: March 9th in Afghanistan and February 11th in Pakistan.