Finally, the GHS Index is valuable in its framing of global health security as a multisectoral social project. Effective outbreak prevention, for example, depends in part on addressing root causes of disease emergence, such as those captured in GHS Index indicators examining land use changes, veterinary workforces and agricultural practices. This multisectoral lens—which incorporates measures of country fragility and other political, economic and environmental vulnerabilities—creates a tangible starting point for One Health coordination platforms or national disaster management committees to work across sectors, engage non-traditional partners and formulate multisectoral solutions to complex health challenges. Though processes like JEEs and NAPHS development are intended to be multisectoral, it is the health sector that most often functions as the entry point for other stakeholders and sectors that may not have explicit mandates to strengthen health security.6 The GHS Index thus recognises—and measures—the benefits of whole-of-society approaches to health security that transcend any one sector.