Cameroon’s urgent push to close its immunization gap is unfolding as both a sprint and a marathon, reflecting the dual nature of the country’s “Big Catch-up” campaign. Launched in 2023 with support from Gavi and global health partners, the initiative aims to reach children who missed routine vaccinations during the COVID-19 pandemic, particularly those classified as zero-dose, children who have never received a single vaccine. From July 31 to August 4, 2025, the campaign’s fourth phase mobilized vaccinators across 63 health districts, delivering protection against measles, polio, and other preventable diseases to vulnerable communities in all ten regions of the country.
In remote areas like Gazawa in the Far North and Akwaya in the South-West, the campaign’s success hinges on the determination of mobile health teams and the commitment of parents. Some mothers welcomed vaccinators into their homes, while others made long journeys to health centers to ensure their children were immunized. These personal efforts reflect a broader national drive to restore immunization coverage to pre-pandemic levels and prevent future outbreaks. However, the path remains challenging. Insecurity, poor infrastructure, and limited resources continue to hinder access, especially in conflict-affected and hard-to-reach zones. Health workers often navigate treacherous terrain and unpredictable conditions, underscoring the resilience required to sustain progress.
Cameroon’s Expanded Programme on Immunization (EPI) emphasizes that this campaign is not a one-time effort but part of a long-term strategy to strengthen routine services and build public trust. Children are being reached through multiple channels, including polio drives and intensified immunization periods, ensuring that no child is left behind. The dedication of frontline workers and the active participation of communities are central to the campaign’s momentum, but sustained investment, innovation, and coordination remain essential. As Cameroon continues its journey to immunize every child, the campaign stands as a powerful testament to the country’s commitment to public health and the enduring strength of collective action.