Systemic risk (clinical epidemiology) is the concept representing the potential for widespread instability or collapse within financial or insurance systems, specifically when such systemic failures are initiated or significantly influenced by factors, events, or trends studied within clinical epidemiology. Situated within the academic domain encompassing insurance regulations, financial security, international finance, quantitative finance, and risk analysis, this concept investigates how phenomena related to population health, disease dynamics, or healthcare system-wide issues can trigger cascading risks across interconnected financial entities. Its significance lies in informing the assessment, modeling, and mitigation of financial vulnerabilities stemming from large-scale health-related crises, crucial for safeguarding financial security and stability.