The Democratic Republic of the Congo (DRC) has reported 10 new cases of circulating vaccine-derived poliovirus type 1 (cVDPV1), according to the latest update from the Global Polio Eradication Initiative (GPEI).
The 10 cases, 9 from Tanganyika province and 1 from Haut Katanga province, bring the total number of cVDPV1 cases reported in the country this year to 46. DRC also reported 4 new cases involving circulating vaccine-derived poliovirus type 2 (cVDPV2), 2 each from Haut Lomami and Lualaba provinces, bringing the 2023 total to 61 cases.
Nigeria also reported a new cVDPV2 case this week, from Kebbi province, and has now reported 19 this year. Countries reporting cVDPV2-positive environmental samples include Nigeria (1), Algeria (2), and Yemen (5).
Pakistan reported one wild poliovirus type 1 (WPV1)-positive environmental sample.
GPEI also published the sixth report of the Transition Independent Monitoring Board, which evaluates the progress and challenges of transferring the responsibility of polio immunization and response efforts to national governments. The report includes a series of recommendations to strengthen the process at the global, regional, and country level.