In 1948, the World Health Assembly called for the first "World Health Day" to commemorate the founding of the World Health Organization. Since 1950, World Health Day has been celebrated annually on April 7th. Each year, a theme for World Health Day is chosen to focus on one of the areas of concern and priority in the WHO ladder. Today it is also an occasion to initiate a long-term advocacy program in which various activities and resources will be undertaken for a period not limited to 7 April but beyond. [1] The Constitution of the Organization came in May 1984 when 26 Member States Sixty-first World Health Assembly The first World Health Assembly was held in Geneva in the presence of delegates from 53 countries that became members of the organization.