RESUMEN
BACKGROUND: Conspiracies about vaccination are prevalent. We assessed how the health information sources people rely upon and their political ideologies are associated with acceptance of vaccine conspiracies. METHODS: Online survey (Nâ¯=â¯599) on Amazon's Mechanical Turk crowdsource platform. Hypotheses were tested via structural equation modeling. RESULTS: Acceptance of vaccine conspiracy beliefs was associated positively with greater reliance on social media for health information (coef.â¯=â¯0.42, pâ¯<â¯.001), inversely related to use of medical websites (coef.â¯=â¯-0.21, pâ¯<â¯.001), and not significantly related to use of providers for health information (coef.â¯=â¯-0.13, pâ¯=â¯.061). In addition, liberal political orientation was negatively associated with acceptance of vaccine conspiracies (coef.â¯=â¯-0.29, pâ¯<â¯.001). CONCLUSIONS: An understanding of vaccine conspiracy acceptance requires a consideration of people's health information sources. The greater susceptibility of political conservatives to conspiracy beliefs extends to the topic of vaccination.