The Global Centre for Risk and Innovation (GCRI)
Topics at Health Nexus: the pages in this section are listed below, each with its own scope and status.
GCRI · Established · service level R0
The Health Nexus topics are the eight subject dossiers of its field, among them health system continuity, One Health and infectious threats. Each dossier sets out how the risk develops, what is measured and in which units, the public sources and their licences, the methods, who decides and the limits of the evidence.
GCRI is a research, development and policy institution. It is not a regulator, and it does not certify, license or approve; its findings carry their methods and uncertainty.
The topics move from threats (infectious, environmental) through the systems that respond (care, supply, infrastructure, digital) to the people affected (equity) and the One Health links between them.
Each term as this page uses it. Where a standard-setting body defines the term, the wording follows that body.
| Term | Definition |
|---|---|
| Essential health services | The services a health system must sustain during an emergency, such as emergency care, maternal and child health, and treatment for chronic conditions. |
| Zoonosis | An infectious disease transmitted between animals and people. |
| Reproduction number | The average number of people one case infects; the time-varying value reflects current immunity and control measures. |
| Health inequity | A difference in health that is unnecessary, avoidable and unjust, as distinct from any measurable inequality. |
| Fine particulate matter | Airborne particles of 2.5 micrometres or less, known as PM2.5, which reach deep into the lungs and bloodstream. |
The bodies and documents this page is read against. Status and editions change; each link goes to the issuing body.
Hospitals, staff, power and essential services.
TopicHuman, animal and ecosystem interdependence.
TopicOutbreak readiness, surveillance and uncertainty.
TopicUnequal exposure and access to services.
TopicWater, air, heat, pollution and health.
TopicMedicines, cold chain and health logistics.
TopicData, AI safety and digital infrastructure.
TopicFacility resilience and recovery.
The current service level is R0: information and enquiries. An enquiry receives a reference and names the next step; applications, payments, compute allocations and registrations open only when their team, terms and review capacity exist.