“The Languages and Anti-Languages of Health Communication in the Age of Conspiracy Theories, Mis/Disinformation and Hate Speech” aims at analysing the languages of discourse of health communication, specifically health message design, addressing COVID-19 in both institutional and non-institutional media settings. The purpose of this special issue is to explore the “anti-languages” and counter-discourses endorsing (mis/dis-)information, and conspiracy theories which are in direct opposition to official discourses and challenge social and political hegemony. The discourse approach to health communication featured in the papers of this special issue will help understanding social responses to sickness and belief related to health