KIU Publications

Pandemics have repeatedly revealed and amplified pre-existing social inequalities, producing disproportionate mortality among marginalized populations. Differences in income, race and ethnicity, education, occupation, housing conditions, and access to healthcare significantly shape exposure risk, vulnerability to severe disease, and survival outcomes. From the 1918 influenza pandemic to the HIV/AIDS crisis and the COVID-19 pandemic, mortality patterns consistently demonstrate that disadvantaged groups experience higher infection rates and worse outcomes. These disparities are not biologically predetermined but are rooted in structural determinants such as poverty, systemic discrimination, labor precarity, and unequal access to health services. This review synthesizes historical and contemporary evidence on how social inequality influences pandemic mortality patterns. It examines key pathways, including occupational exposure, comorbidities, healthcare access, information inequity, and trust in institutions, that mediate these effects. The review further explores how public health interventions can inadvertently widen disparities if not designed with equity in mind. Finally, it outlines policy strategies aimed at mitigating inequality-driven mortality in future pandemics, emphasizing the need for intersectional data systems, universal health coverage, social protection policies, and community engagement. Addressing pandemic mortality inequities requires structural reform that extends beyond emergency response and targets the underlying social gradients that shape health outcomes.