Global health is the study and practice of improving health across populations and borders, with particular attention to the differences between them. Its subjects are the ones no single country can settle alone: outbreaks, medicine supply, migration of health workers, and the financing of care in the poorest places.
Our coverage follows the institutions that coordinate this work and the persistent gaps they have not closed.
Global health explained: definition, how it differs from international and public health, key actors, financing, major priorities and persistent structural challenges.
The major global health challenges: NCDs, antimicrobial resistance, pandemic risk, workforce shortages, climate change, mental health and health financing gaps.
How outbreaks are detected and controlled: surveillance systems, verification, epidemiological investigation, IHR obligations, containment measures and response gaps.
How global immunization programs work: herd immunity, cold chain, delivery systems, WHO and Gavi roles, vaccine safety monitoring and barriers to coverage.
Health equity explained: what it means, how it differs from equality, social determinants of health, global and within-country disparities, and what actually works.