This is an extension to our collaboration with Gavi, the Vaccine Alliance on the Mapping the characteristics of under/un‐vaccinated children (Zero Dose II) project. It also builds on our previous project in Nigeria funded by the Bill & Melinda Gates Foundation. We are working to extend the work to explore further the characteristics of un/under-vaccinated children in Nigeria – providing additional insights into other potentially relevant settings as well as drivers and characteristics of zero-dose to support planning of country strategies.

Peer-reviewed publications detailing the characteristics and spatial distribution of targeted population are being prepared. Any datasets produced for the project will be available for open access.

Dr Edson Utazi is leading the project, with the aim of delivering the following key outputs:

• Geospatial analysis of the 2021 Multiple Indicator Cluster Surveys-National Immunization Coverage Survey (MICS-NICS) data to produce MCV1 and DTP1-3 coverage estimates and corresponding estimates of numbers of zero-dose children.
• A methodology for identifying districts at high risk of measles outbreaks in Nigeria and for comparing these with high risk districts identified by other programs such as the polio and maternal and neonatanal tetanus (MNT) programs using data from multiple sources (e.g., 2018 Nigeria Demographic and Health Survey (NDHS), Multiple Indicator Cluster Surveys-National Immunization Coverage Survey (MICS-NICS) 2021, and measles post-campaign coverage survey (PCCS) 2020/21).
• Analyses to address important programmatic questions relating to factors responsible for changes (improvements/reductions) in coverage, as well as any impact on coverage levels that can be attributed to the Covid-19 pandemic.
• Spatio-temporal assessments of the REACH intervention in Nigeria
• Two capacity-strengthening workshops in Nigeria:
  • an intermediate level workshop that will focus on equipping data users with the skills needed to understand and utilize geospatial analysis outputs for their work, and
  • an advanced level workshop that will aim to strengthen in-country capacity to undertake geospatial analysis.
• Documentation of results and publications