<p>We conducted a cross sectional study that included all AFP cases reported by the 71 districts of the enhanced Community-Based Surveillance (CBS) of poliomyelitis in Africa project (Cameroon: 10, Chad: 18, DR-Congo: 35, Niger: 08) from August 2020 to July 2022. Data were extracted from the national surveillance databases and compiled for descriptive analysis. Studied variables were alerts and AFP cases reported, notification’s timelines and stool samples collected within 14 days after paralysis onset.</p>