About WHO
Who we are
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.
Constitution of WHO: principles
WHO constitution and principles
History of WHO
WHO’s Constitution came into force on 7 April 1948 – a date we now celebrate every year as World Health Day. Discover more about WHO history through archives, seminars, public health posters and campaigns.
WHO structure: people and offices
More than 7000 people from more than 150 countries work for the Organization in over 150 WHO country offices, 6 regional offices, at the Global Service Centre in Malaysia and at the headquarters in Geneva, Switzerland.
Multilingualism and WHO
WHO's multilingual web site, publications and other resources ensure that health information reaches the people who need it, in the languages they can understand. This makes access to health information both more equitable – and effective.
Work with us
In line with the mission to provide global leadership in public health, WHO employs health specialists, medical doctors, scientists, epidemiologists and also people with expertise in administration and finance, information systems, economics, health statistics as well as emergency preparedness and response.
