A scoping review of peer-reviewed, quantitative studies on zero-dose children between January 2022 and January 2024 presents results from 82 articles on barriers to vaccination and deprivations faced by ZD children. No articles were found on interventions specific to ZD children. Findings underscore the need for evidence and for catalytic approaches to address multiple deprivations.

A presentation by Dr. Sunitha Chandrasekhar with Sabin Vaccine Institute summarizes key findings from the 181 abstracts. It underscores the significant barriers to reaching ZD and under-immunized children in low- and middle-income countries (LMICs). Challenges such as delivery outside the health system, limited healthcare access, and health workforce gaps are highlighted. The synthesis also provides recommendations for integrating primary health care, addressing gender considerations, and the role of the community to improve vaccine equity and ensure broader immunization coverage.