The concluding chapter re-envisions the circulatory systems of our cities and society—the networks of mobility and access—as a dynamic metabolic framework capable of defense, regulation, and regeneration. Moving beyond mere efficiency, it proposes transport systems that proactively identify and neutralize disruptions, much like an immune response, through predictive and self-regulating mechanisms, and modular, redundant infrastructure. Challenges include ensuring equity across diverse communities and integrating technological, ethical, and urban planning paradigms. Beyond reducing congestion and emissions, the vision prioritizes a symbiotic relationship between mobility, urban and social life, replacing car-centric models with polycentric, resilient networks. Philosophically, it reframes transportation not as a utility but as an active, ethical agent in fostering social cohesion and planetary health, ensuring equitable access for all. Urbanimmunology urges a shift from reactive transportation management to proactive systemic immunity, redefining mobility as the vital flow that connects, protects, and nourishes the urban and social body. Transportation networks become not just conduits for movement, but the intelligent shield and lifeblood of a thriving, adaptive society where human potential and ecological integrity are inextricably linked.