Circulation: from the passage zone to the ambiance of interpenetrations of meanings 193 The second and third sets are characterized by disputes of meanings involving informative and explanatory re- ports developed by political and health systems. The first, on the other hand, presents a “combat enunciation”, through which the political (presidential) discourse is directed, over months, to the different social systems (political, health and the population in general) to disqualify the strategies to combat the virus. In this context, the president disqualifies the nature of media enunciation, through acts that affect not only the jour- nalistic institution, but its own actors – such as, for example, by telling a journalist to “shut up” in the context of an interview. By doubting the effectiveness of the vaccine and promoting suc- cessive public speeches aimed at institutions, the presidential speech denies science while claiming that the virus is just a “lit- tle flu”. In the second set of texts, we examine media coverage of COVID-19, a circumstance in which they assume communi- cation strategies that are different from traditional journalistic coverage. They transform their routines into clarification programs, with the mediation of professionals and specialists from several fields. Consequently, complex interactions engaged in the fight against the virus are generated, involving educational actions, problematization of discourses of denial and threat to scientific knowledge etc. The traditional rituals of mediation are threatened by being interrupted, suspending the voice of the journalist as its operator. At the same time, the media system chooses other mo- dalities of public clarification, mixing with self-referential activities on the role of journalism in the conduct of complex events. The routines are transformed into thematic broadcasts, involv- ing specialists from various areas of knowledge, raising clarifications, debates, reports etc. These are events “piloted” by the discourse of the present, addressed to the population in a kind of mail of daytime contacts. Finally, the third group of texts includes instructional campaigns about the virus, which are enunciated through com- munication and popular education supports – such as cordel leaflets. They circulate with the collaboration of educational agents from diverse areas, giving instructions to the population
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