Dataset for Estimating the cost of immunizing zero-dose children through outreach in Nigeria

About this study: This study used a retrospective bottom-up costing approach in three states: Jigawa, Kaduna, and Lagos. In total, 57 health facilities were sampled across 8 LGAs, selected to represent different zero-dose prevalence and geographic contexts. Costs were assessed from the payer perspective, capturing both financial outlays and economic costs. Data were collected between December 2024 and March 2025, including cost data and qualitative interviews on barriers and implementation challenges. Unit costs were calculated as volume-weighted averages, and findings were disaggregated by delivery strategy, state, and ZDROP participation. A qualitative assessment was also conducted alongside the costing to capture providers’ perspectives on the key barriers to vaccinating zero-dose children as well as their recommendations to reduce zero-dose prevalence in their areas. Results are primarily presented as the cost per Penta1 dose delivered to a child of any age due to limited data on Penta1 doses delivered to zero-dose children (aged 12-23 months). About this file: This file presents the facility-level raw cost data used to estimate the cost of delivering vaccines to zero-dose children. Costs are presented as 2024 USD.