Stimulus
Global health programmes tend to follow one of two logics. Vertical, disease-specific programmes concentrate resources, staff and technology on defeating a single illness, allowing rapid, measurable progress against a named target. Horizontal health-system strengthening instead invests in the general foundations of care, such as clinics, trained workers, supply chains and surveillance, that serve every condition at once.
The Global Polio Eradication Initiative, a partnership of the World Health Organization, UNICEF, Rotary International and the Gates Foundation, is a landmark of the vertical model, cutting polio cases by more than ninety-nine per cent through targeted campaigns. Yet the 2014 West Africa Ebola epidemic exposed the cost of neglecting horizontal capacity, as Guinea, Liberia and Sierra Leone lacked the basic health workers, laboratories and trust needed to contain an outbreak that vertical funding had never been designed to prevent.
Adapted from "Two Ways to Save a Life" by Dr Kwame Asante, director of health-systems research, The Global Public Health Quarterly (2020).