The World Health Assembly is the supreme decision-making body of WHO, with a 34-member Executive Board under it
Background
Governance of the World Health Organization takes place through the World Health Assembly, which is the supreme decision-making body, and the Executive Board, which gives effect to the decisions and policies of the Health Assembly.
The Health Assembly is attended by delegations from all WHO Member States and works to an agenda prepared by the Executive Board.
Its main functions are to determine the policies of the Organization, appoint the Director-General, supervise financial policies, and review and approve the proposed programme budget.
The Executive Board is composed of 34 technically qualified members elected for three-year terms, and its annual meeting is held in January/February.
The Director-General is appointed by the Health Assembly on the nomination of the Executive Board and is the chief technical and administrative officer of the Organization.
The Constitution of WHO was adopted by the International Health Conference held in New York 1946 and entered into force on 7 April 1948.
Six regional committees meet separately, for Africa, the Americas, the Eastern Mediterranean, Europe, South-East Asia and the Western Pacific.
In plain words
WHO World Health Organization — The United Nations specialized agency for international health work.