  This study investigates the impact of disinformation on public policies.
Using 28 sets of keywords in eight databases, a systematic review was carried
out following the Prisma 2020 model (Page et al., 2021). After applying filters
and inclusion and exclusion criteria to 4,128 articles and materials found, 46
publications were analyzed, resulting in 23 disinformation impact categories.
These categories were organized into two main axes: State and Society and
Actors and Dynamics, covering impacts on State actors, society actors, State
dynamics and society dynamics. The results indicate that disinformation affects
public decisions, adherence to policies, prestige of institutions, perception
of reality, consumption, public health and other aspects. Furthermore, this
study suggests that disinformation should be treated as a public problem and
incorporated into the public policy research agenda, contributing to the
development of strategies to mitigate its effects on government actions.
