New wild poliovirus isolates reported this week:
AFP cases: 0
Environment: 24
Others: 0
New cVDPV isolates reported this week:
AFP cases: 4
Environment: 9
Others: 0

Summary of new poliovirus cases and positive environmental samples:
Angola: one cVDPV2 case and one cVDPV2 positive environmental samples were reported
Chad: two cVDPV2 positive environmental samples were reported
Djibouti: two cVDPV2 positive environmental samples were reported
Israel: one cVDPV2 positive environmental sample was reported
Nigeria: three cVDPV2 cases and three cVDPV2 positive environmental samples were reported

Afghanistan: No WPV1 cases and no WPV1 positive environmental samples were reported this past week.
Pakistan: No WPV1 cases and twenty-four WPV1 positive environmental samples were reported this past week

Officially reported WPV1 and cVDPV cases as of (January 28, 2025):
Wild poliovirus (WPV)
Total global WPV1 cases in 2025: 7
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: 15
Total global cVDPV cases in 2024: 308
Total global cVDPV cases in 2023: 528
Total global cVDPV cases in 2022: 878

Most recently reported WPV1 cases this year: January 27th in Afghanistan and February 10th in Pakistan.