| Summary: | This scoping review explores the history of the term infodemic and its usefulness as a tool for public health policymaking. It presents the information-related problems the term has encompassed; historical research on these problems, which predate the term itself; and in-depth analyses of their iterations in three historical outbreaks with long-term significance for public health policy: the 1918 influenza pandemic, the beginning of the HIV/AIDS pandemic in the 1980s, and the 2003 outbreak of severe acute respiratory syndrome. Particular attention is paid to the characteristics of scientific practice that inadvertently contributed to the generation of misinformation, as well as other factors that played a role: historical legacies, persistent inequalities and a growing distrust of scientific authority. Historical perspective helps balance contemporary analyses of infodemics that focus too narrowly on the role of new social media in disseminating misinformation and disinformation. Insights derived from the historical record can also be useful to contemporary infodemic management
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