Barriers to Childhood Immunisation in Selected Zero-Dose Communities in Gauteng Province: A Qualitative Study

Background/objective: The Immunisation Agenda 2030, led by the World Health Organization, aims to ensure that people of all ages benefit from vaccination. South Africa remains committed to these goals, strengthening childhood immunisation largely through the Expanded Programme on Immunisation. However, despite progress, the number of unvaccinated and partially vaccinated children continues to rise in some urban settings. This study sought to identify barriers to childhood immunisation in selected zero-dose urban communities in Gauteng Province. Methods: A qualitative exploratory-descriptive design was used to examine factors influencing childhood immunisation. Data were collected through seven focus group discussions and fifteen key informant interviews with purposively selected caregivers, community leaders, community health workers and healthcare workers involved in routine immunisation services at public healthcare facilities across the Cities of Johannesburg, Ekurhuleni, and Tshwane. Thematic analysis was conducted using NVivo^® software. Results: The study identified multiple demand-side and supply-side barriers. Demand-side barriers included limited parental knowledge, lack of trust in the government and immunisation services, religious beliefs, migration, and perceptions of caregiver substance use. Supply-side barriers involved distance to the facility, negative healthcare worker attitudes, long queues and waiting times, and frequent vaccine stock-outs. These barriers collectively contributed to missed opportunities and decreased uptake of immunisation services. Conclusions: Childhood immunisation remains a critical and cost-effective public health intervention. The findings demonstrate the complex interplay of individual and system-level factors influencing vaccine demand, uptake and persistent zero-dose status in urban Gauteng communities. Addressing these barriers requires a comprehensive approach that strengthens community trust, improves caregiver vaccine literacy, and ensures accessible, responsive, and respectful immunisation services.