World Health Organization

The World Health Organization (WHO) is the United Nations agency responsible for directing and coordinating international public health. Its core function is to provide leadership on global health matters, shape the health research agenda, set norms and standards, and articulate evidence-based policy options. WHO works with governments, non‑governmental organizations, academic institutions, and other partners to prevent disease, promote health, and respond to health emergencies. It also monitors health trends and provides technical assistance to countries seeking to strengthen their health systems.

Headquartered in Geneva, Switzerland, WHO maintains a presence in every region of the world through regional offices and country offices. The organization’s reach extends to its member states, which include virtually all countries of the world, enabling it to coordinate health initiatives across diverse political and economic contexts. During the coronavirus pandemic, WHO served as the central hub for sharing information, guidance, and coordination among nations. Its operational footprint includes laboratories, surveillance networks, and emergency response teams that can be deployed rapidly.

WHO’s distinguishing attribute is its mandate to act as the directing and coordinating authority on international health, a role granted by its constitution. It develops and promotes international health regulations, such as the International Health Regulations (2005), which provide a legal framework for countries to report and respond to public health emergencies. The organization also possesses specialized expertise in epidemiology, vaccine development, and health systems strengthening, which it draws upon during outbreaks and humanitarian crises. Its normative work includes the publication of guidelines, classification systems, and statistical compilations that are used worldwide by health professionals and policymakers.

WHO is a specialized agency of the United Nations, accountable to the UN General Assembly and the Economic and Social Council through its governing body, the World Health Assembly. The organization’s secretariat, headed by the Director-General, implements the policies set by the Assembly and manages day‑to‑day operations. While WHO does not have subsidiaries in the commercial sense, it collaborates with a network of collaborating centres and partner institutions that support its technical work.