The search for the missing link between health misinformation & health disparities

Relative to the rapid increase in available health information, little has been published on the differential impact misinformation has on the health of communities. Observations during the height of the COVID-19 pandemic indicated there were communities that made decisions that negatively impacted health outcomes beyond expectations; we propose that health misinformation was a contributor to poor health outcomes. Health misinformation exposure varies across communities and preliminary research suggests that some communities are more vulnerable to the impact of health misinformation than others. However, few studies have evaluated the connection between health misinformation and healthcare disparities. In this paper, we (a) review the current literature on misinformation and its impact on health disparities, (b) expand on prior epidemiological models to explain the communal spread of misinformation and the link to disparate health outcomes, (c) identify gaps in knowledge about communal misinformation spread (d) review promising interventions to halt the adverse impact of misinformation. •Health misinformation gains credence in vulnerable communities as a result of collective beliefs and lived experiences.•Health misinformation can alter health decisions or a population and lead to health disparities.•Gaps in research related to misinformation and misinformation-related harm.•Actionable tools to dampen the impact of health misinformation.