WorldPop Projects
Mapping vaccination coverage in Nigeria
Project leads: Edson Utazi, Andy Tatem
Team: Justice Aheto, Ollie Pannell, Winfred Dotse-Gborgbortsi, Alexandra Frosch
Funding: The Bill and Melinda Gates Foundation
Start: Dec 2019
Completion: Dec 2020
This project undertook geospatial mapping of measles, meningitis and yellow fever vaccination coverage using Nigeria’s 2019-20 post-campaign coverage surveys (PCCS) and the 2018 Demographic and Health Survey (DHS). The key objectives were to produce maps of vaccination coverage and associated estimates of numbers of zero-dose children and to strengthen local capacity to undertake such analyses in the future.
The analyses used geolocated PCCS data sets provided by NPHCDA, publicly available 2018 Nigeria DHS data, and geospatial covariate data provided by WorldPop. Analyses that used DHS data also included multi-level modelling of risk and protective factors associated with measles and DTP vaccinations to determine their significance and implications for program planning and implementation.
Outputs from the project included:
- 1x1km and admin level estimates of MCV coverage for PCCS survey indicators and relevant visualisations
- 1x1km and admin level estimates of Yellow Fever vaccination coverage for PCCS survey indicators and relevant visualisations
- 1x1km and admin level estimates of Meningitis A vaccination coverage for PCCS survey indicators and relevant visualisations
- 1x1km and admin level estimates of MCV coverage and corresponding estimates of numbers of zero-dose children using 2018 DHS data
- 1x1km and admin level estimates of DTP1-3 coverage and corresponding estimates of numbers of zero-dose children using 2018 DHS data
- Results of multi-level modelling of risk factors for under vaccination using 2018 DHS data
Publications
- Mapping the distribution of zero-dose children to assess the performance of vaccine delivery strategies and their relationships with measles incidence in Nigeria
- Multilevel analysis of predictors of multiple indicators of childhood vaccination in Nigeria
- District-level estimation of vaccination coverage: Discrete vs continuous spatial models
- Assessing the characteristics of un- and under-vaccinated children in low- and middle-income countries: A multi-level cross-sectional study