Geographic disparities and determinants of DTP3 vaccination coverage among children aged 0–59 months in Somalia: a multilevel analysis

DTP3 coverage in Somalia is critically below the WHO 90% target. Vaccination status is shaped by a complex interplay of socioeconomic status, maternal healthcare utilization, and geographic location. Policy interventions must urgently address the 'urban penalty' identified in this study, where settled urban-poor populations now face lower odds of vaccination than nomadic groups targeted by mobile outreach.