WHO is the first global health organization, replacing many regional and national health bodies.

It has the authority of directing and coordinating matters related to international health.

It has 194-member countries, and its secretariat is in Geneva, Switzerland.

World Health Assembly is the supreme decision-making body of WHO, attended by delegations from all member states.( World Health Assembly – It is the forum through which WHO is governed by its 194 member states.)

The Executive Board of WHO implements the decisions and policies of the World Health Assembly.

WHA generally meet every year in Geneva.

Functions of the WHA : Determine the policies of the Organization, appoint the Director- General, supervise financial policies, and review and approve the proposed program budget.