Chinazzo, Luana, Anna Julia Teixeira de Oliveira, Lucas Bragança, Julia Firme, Fabio Goveia, and Francis Sodré. 2026. “From Activism to Radicalization: The Evolution of Vaccine Disinformation in the Brazilian Social Media Ecosystem (2021–2025) ”. Revista Española De Comunicación En Salud 17 (2): 38-58. https://doi.org/10.20318/recs.2026.9951.