FACULTÉ & RECHERCHE

As supporters of Brazilian President Jair Bolsonaro, the Bolsonarism movement has promoted the drug chloroquine for treating Covid-19 in Brazil, despite it being mostly rejected by mainstream health institutions as an effective treatment. This situation can be investigated through the lens of Science and Technology Studies (STS) and ignorance studies supported by methods from digital sociology. Bolsonarist discourse does not contest scientific authority tout court, but rather constructs boundaries between what supporters of the president see as legitimate and illegitimate science. This institutionalised ignorance is produced and maintained through Telegram messenger, a backbone of the multi-platform media ecosystem of Bolsonarism. It is accomplished through boundary work: the exclusion or inclusion of knowledge via two complementary practices – pejorative accusations against mainstream science and the crafting of affective bonds with the chloroquine alternative. While the former aims to invalidate knowledge held by experts opposed to the use of chloroquine, the latter focuses on mobilising trust in an alternative model of science, which we refer to as patriotic science. This model of science is demarcated from mainstream science, framed as corrupt and ill-equipped for the needs of Brazilians. This case study advances STS resources for examining the epistemic demarcation between science/non-science, relevant to other polities and publics that use such boundary work to institutionalise ignorance.