This review integrates evidence on how global health crises and multilevel governance affect public trust in government policies. Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, a search in Scopus (Social Sciences field, English-language articles) yielded 13 publications (2013-2026) from ten countries and one multi-country study: China, the Netherlands, Nigeria, Pakistan, multi-country, South Korea, Hong Kong/China, Moldova, Singapore, Australia, and Indonesia. These studies included qualitative, quantitative, and case study designs; therefore, synthesis was carried out narratively using a thematic-interpretive approach. Two main mechanisms have emerged. In crisis governance, trust is shaped by increases in performance-based trust and citizen emotions, which are mediated by informational and socio-cultural environments. In multilevel governance, trust is influenced by the attribution of central-local responsibility, fiscal decentralization, institutional design, and vulnerability to disinformation targeting specific levels. The synthesis indicates that the attribution of responsibility in multilevel contexts helps explain why increases in performance-based trust during crises are stronger at the local level
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