This paper seeks to bring to the debate the philosophical interrelationships between denialism and nihilism, seeking to unveil the strategies used by the “merchants of doubt” (ORESKES and CONWAY) to influence the population not to adhere to the vaccination against Covid-19, during 2021, through the use of misinformation. In this context, we adopted the Hermeneutics of Historical Consciousness as an interpretative path (RICOEUR, 2010), which enables us to understand the narrative production of intentional disinformation and its collective and social appropriation. HHC offers us an interpretative possibility of the world of the text based on the relationship with history, the past and the experience, as entities affected by the past, which we are. ). In this sense, this paper’s structure has as it starting point a brief debate that seeks to confront Nietzschean nihilism and scientific denialism, in order to confront communication and disinformation and its current dimensions, intermediated by an interpretation of fake news about vaccines that circulated in 2021 and which have President Jair Bolsonaro as a promoter. The narratives posted here for interpretation were denounced by society through the @eufiscalizo app from Fiocruz-RJ and checked through the website https://www.nujocchecagem.com.br/.