However, other scholars have highlighted a need for global health security metrics that do not simply mirror global patterns of wealth distribution, and that more accurately capture health system functionality and performance rather than capacity alone.19 20 Though the GHS Index does extrapolate beyond the metrics featured in the aforementioned frameworks to encompass novel measures of risk, vulnerability and health system readiness, its primary goals remain (1) supporting and enhancing existing health security-strengthening mechanisms in a comprehensive, accessible format; and (2) motivating decision makers in all countries to make needed investments in epidemic and pandemic preparedness.