One Health concept into practical policies and strategies that promote interagency and cross-sectoral collaboration.1st International One Health Congress, 14--16 February 2011The 1st International One Health Congress was held in Melbourne, Australia. More than 650 people from 60 countries and a range of disciplines came together to discuss the benefits of working together to promote a One Health approach. In addition to understanding the interdependence of human, animal, and environmental health, attendees agreed that it is important to include other disciplines such as economics, social behavior, and food security and safety.1st One Health Conference in Africa, 14--15 July 2011The Southern African Center for infectious disease surveillance organized the 1st One Health Conference in Africa at the National Institute for Communicable Diseases in Johannesburg, South Africa. The conference brought togetherscientists from Africa, Asia, Europe, Russia, Australia, and the United States.Tripartite, 15--17 November 2011Building on the agreements in the Tripartite Concept Note, the Tripartite organized a high-level technical meeting in Mexico City on 15--17 November 2011. The focus of this meeting was to address health risks that occur in different geographic regions by highlighting three priority One Health topics -- rabies, influenza, and antimicrobial resistance. These topics served as a basis to discuss what needs to be done to build political will and more actively engage ministers of health in the One Health movement.The Global Risk Forum One Health Summit, 19--22 February 2012The Global Risk Forum One Health Summit was held in Davos, Switzerland. The Summit presented the One Health concept as a way to manage health threats,