The instrumentalization of science in the discussion about vaccines on Twitter in Brazil

Authors

  • Lídia Raquel Herculano Maia Instituto Nacional de Comunicação Pública da Ciência e Tecnologia (INCT-CPCT) , Oswaldo Cruz Foundation image/svg+xml
  • Luisa Massarani Instituto Nacional de Comunicação Pública da Ciência e Tecnologia (INCT-CPCT) , Oswaldo Cruz Foundation image/svg+xml
  • Thaiane Oliveira Fluminense Federal University image/svg+xml , Departamento de Estudos Culturais e Mídia, Universidade Federal Fluminense (UFF), Brasil
  • Marcelo Alves dos Santos Júnior Pontifical Catholic University of Rio de Janeiro image/svg+xml , Departamento de Comunicação Social, Pontifícia Universidade Católica do Rio de Janeiro (PUC-RIO), Brasil

DOI:

https://doi.org/10.20318/recs.2026.9702

Keywords:

Twitter, vaccines, instrumentalization of science, COVID-19, health disinformation

Abstract

Introduction: The COVID-19 pandemic has generated a context marked by uncertainties and widespread health-related misinformation. Objectives: In this context, we analyze the use of science in discussions about vaccines on X (formerly Twitter) in Brazil during the period of the pandemic’s highest crisis. Methodology: To achieve this, we searched for descriptors related to vaccination and scientific research on this platform. From this, we found 1,354 tweets that addressed the issue of vaccines and cited articles and/or preprints in this discussion, published between January 2020 and December 2021. The research findings were systematized into three main categories that map the possible uses, instrumentalization, and distortion of science in the discussion about vaccines on this platform. Results: From the analysis, we observed that the vast majority of scientific publications brought to the debate were favorable or neutral regarding the vaccine. Nevertheless, some of them were instrumentalized and/or subtly distorted to criticize vaccines and to exalt medications considered a panacea or alternative to immunization. Conclusion: These data indicate that misinformation about vaccines in contemporary times operates at a more complex level than assumed, and may be associated with disputes over the meaning of science. 

 

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Published

2026-07-29
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Herculano Maia, L. R., Massarani, L., Oliveira, T., & dos Santos Júnior, M. A. (2026). The instrumentalization of science in the discussion about vaccines on Twitter in Brazil. Revista Española De Comunicación En Salud, 17(2), 145-163. https://doi.org/10.20318/recs.2026.9702