Formativeevaluation ofthe GlobalHealth Cluster Re p o r t © World Health Organization 2025. All rights reserved. The content of this document is not final and the text may be subject to editorial revisions beforepublication. The content of this draft, however, will not undergo substantive changes. The documentmay not be reviewed, abstracted, quoted, reproduced, transmitted, distributed, translated or adapted,in part or in whole, in any form or by any means without the permission of the World HealthOrganization WHO/DGO/EVL/2025.85 Contents Acknowledgements....................................................................................................................... vAcronyms................................................................................................................................... viiExecutive summary.................................................................................................................... viiiIntroduction.................................................................................................................................1Methodology................................................................................................................................7Key findings................................................................................................................................ 13Conclusions and recommendations.............................................................................................. 47References................................................................................................................................. 56 L i s to f f i g u r e s Fig. 1.Current organogram of the GHC at Geneva (headquarters) level (April 2025)............................................. 2Fig. 2.Geographical spread of health clusters (March 2025).................................................................................. 2Fig. 3.Theory of Change at global level.................................................................................................................. 3Fig. 4.Theory of Change at country level................................................................................................................ 4Fig. 5.KIIs conducted at each levelFig. 6.KIIs conducted per category of respondents.............................. 8Fig. 7.Survey responses across category of respondents..................................................................................... 10Fig. 8.Health cluster staff at national level (2019–2025)...................................................................................... 25Fig. 9.Staff at subnational level (2019–2025)....................................................................................................... 26Fig. 10.Components included in the contingency plans by cluster operation...................................................... 29 L i s to f b o x e s Box 1.Use of PHIS toolkit...................................................................................................................................... 17Box 2.Resource mobilization................................................................................................................................ 24Box 3.Standby Partnerships(39).......................................................................................................................... 25Box 4.Staffing....................................................................................................................................................... 26Box 5.Support to health clusters.......................................................................................................................... 31Box 6.Intercluster coordination............................................................................................................................ 33Box 7.GHC localization strategy: support for partner operations......................................................................... 37Box 8.Interface between coordination platforms: country examples................................................................... 39Box 9.Nexus......................................................................................................................................................... 42 L i s to f t a b l e s Table 1.People in need and targeted people (2019–2025).................................................................................... 2Table 2.Evaluation criteria, key questions, thematic areas (alignment with SPs, core cluster functions and CLAresponsibilities as given in the ToC)......................................................................................................................... 6Table 3.Strength of evidence............................................................................................................................... 11Table 4.Number of communicati