Polio in Northwest Nigeria — 2025
Tracking weekly cVDPV2 trends despite insecurity, vaccine hesitancy, and access challenges
What the 2025 Data Shows
Surveillance data from 2025 indicates a clear reduction in circulating vaccine-derived poliovirus type 2 (cVDPV2) cases across Nigeria. However, northwest states remain the most persistent transmission corridor due to insecurity, mobile populations, and immunisation gaps.
Bottom line: Transmission declined in 2025, but it did not stop. Progress is uneven across the northwest.
Weekly Evolution of Polio Cases — Northwest Nigeria (2025)
Green indicates very low or zero detections, orange shows moderate persistence, while red highlights states where transmission remained stubborn in 2025.
