WHO’s success in the field of disaster preparedness and response is due in large part to excellent cooperation with partner organizations.

In the United Nations humanitarian reform process, WHO was assigned the role of health cluster lead agency, and thus the task of coordinating activities in response to the health aspects of crises. In this capacity, WHO cooperates with other organizations of the United Nations system, but also with organizations of the Red Cross/Red Crescent movement and other nongovernmental organizations.

Several of WHO’s projects are supported, both materially and technically, by partner organizations. Among these are the European Union, as well as national governments and government agencies. Collaboration can also take the form of joint campaigns, such as the 2008–2009 “hospitals safe from disasters” campaign, which was organized by WHO and the United Nations International Strategy for Disaster Reduction, with support from the Global Facility for Disaster Reduction and Recovery of the World Bank.