Back Агәабзиарахьчара адунеизегьтәи аиҿкаара Abkhazian Wêreldgesondheidsorganisasie Afrikaans Weltgesundheitsorganisation ALS የአለም ጤና ድርጅት Amharic Organización Mundial d'a Salut AN منظمة الصحة العالمية Arabic منظمة الصحه العالمية ARZ বিশ্ব স্বাস্থ্য সংস্থা Assamese Organización Mundial de la Salú AST Ümumdünya Səhiyyə Təşkilatı Azerbaijani
The World Health Organization (WHO) is part of the United Nations (UN), working on international public health, with its headquarters in Geneva, Switzerland. The WHO was established by the UN on April 7, 1948. In the previous year they had already started an epidemiology service. WHO World Health Day is celebrated on April 7.