evidence: One Dose at a Time: Mobilizing to Eliminate Cervical Cancer in Nigeria Nigeria introduced the single-dose HPV vaccine into its routine immunization program in October 2023. This marked a historic milestone in the fight against HPV-related cancers, including cervical cancer, which is one of the leading causes of death for Nigerian women. This momentous vaccine introduction was made possible by the Nigerian Government, through the National Primary Health Care Development Agency (NPHCDA), with support and technical assistance from several key partners, including Gavi, the Vaccine Alliance, WHO, UNICEF, and IVAC. [...] IVAC, led by Nigeria Country Director Dr. Chizoba Wonodi, played a pivotal role at various stages of HPV vaccine introduction such as offering technical assistance to the Nigeria Immunization Technical Advisory Group (NGI-TAG) during their evidence review to evaluate and recommend the vaccine and organizing a national stakeholder forum on cervical cancer elimination. With Gavi support, IVAC also identified and trained civil society organizations (CSOs) to address misinformation, mobilize young girls for vaccination, and ensure inclusivity for adolescent girls with disabilities. CSOs have extensive networks and are highly trusted within their communities, and so these sensitization efforts were crucial for vaccine demand generation and the ultimate success of the campaign.