World Health Organization (WHO)

• URL: http://www.who.int
• Address: Avenue Appia 20
• Postal Code: 1211
• City: Geneva 27
• Country: Switzerland
• Telephone: +41 227912111
• Fax: +41 227913111
• Email: info@who.int
• Head of the organization: Margaret Chan

WHO, as a specialized agency of the United Nations, is the directing and coordinating authority for health within the United Nations system. WHO’s Constitution came into force on 7 April 1948.

WHO is responsible for providing leadership on global health matters, shaping the health research agenda, setting norms and standards, articulating evidence-based policy options, providing technical support to countries and monitoring and assessing health trends.