WHO began when our Constitution came into force on 7 April 1948 – a date we now celebrate every year as World Health Day. We are now more than 7000 people from more than 150 countries working in 150 country offices, in 6 regional offices and at our headquarters in Geneva.WHO, as the directing and coordinating authority on international health within the United Nations system, adheres to the UN values of integrity, professionalism, and respect for diversity.
The values of the WHO workforce furthermore reflect the principles of human rights, universality, and equity established in WHO’s Constitution as well as the ethical standards of the Organization.
These values are inspired by the WHO vision of a world in which all peoples attain the highest possible level of health, and our mission to promote health, keep the world safe, and serve the vulnerable, with measurable impact for people at country level. We are individually and collectively committed to putting these values into practice.