"This study aims to explore the perspectives of policymakers involved in ongoing efforts to boost vaccine confidence in the Philippines following a 2017 Dengvaxia scare and the current COVID-19 pandemic. Between August and November 2020, we conducted 19 semi-structured narrative interviews with purposively selected policymakers from governmental agencies and nongovernmental organizations in the Philippines. Interviews were conducted online, transcribed, and analyzed following the tenets of reflexive thematic analysis. We present results as an emerging model that draws on a chronology conveyed by policymakers in their own words. The Dengvaxia scare proved ‘a decisive wedge’ that splintered Filipino society and pitted governmental agencies against one another. The scare stoked distorted vaccination narratives, which were ‘accelerated rapidly’ via social media, and ignited feelings of uncertainty among policymakers of how to convey clear, accurate health messaging and how to prevent drops in care-seeking more broadly." (Abstract)