This research aimed to analyze the quality of the information conveyed through YouTube videos in Portuguese on the use of two medicines suggested for the treatment of COVID-19: chloroquine and hydroxychloroquine. The ‘Brief DISCERN’ questionnaire was applied to assess the quality of the video content as well as baseline characteristics, such as length, views, likes and dislikes, in a total of 90 videos with almost 4,5 million views. Traditional media accounted for 58,89% of videos. Misleading information was present in most of the videos (63,5%). Despite the ease of access, the videos showed problems in the quality of information.

As successive studies have shown that chloroquine and hydroxychloroquine are ineffective in treating COVID-19, this article investigates how the Brazilian president, Jair Bolsonaro, disputes the truth around science to convince the population that these drugs can save lives, preserve jobs and restore economic growth. Using Charaudeau's theory [Charaudeau, 2007, 2010} as a methodological framework, as well as understanding that right-wing populism has embodied post-truth communication as a distinctive feature of contemporary politics, we observed Bolsonaro's weekly Facebook live streams — known as ‘lives’ — for 14 weeks, identifying them as a communicative device that offers Bolsonaro the material conditions to interact directly with his public. Finally, we structured our analysis according to the three most common themes — questioning delays due to an insistence on scientific methodology, overvaluation of personal experiences and emphasis on individuals' freedom of choice — to observe the emotional images and discursive scenarios the Brazilian president stages to produce the intended pathemic effects of his discourse: hope and urgency; trust and distrust; freedom and polarization.

For many decades, NGOs and social movements have acted as “alternative” science communicators. They have made strategic use of science to promote their ideological stances, to influence political and/or economic decision-making and to motivate civic action. To date, however, our understanding of science communication in activism has received little critical attention. This set of commentaries acts as a starting point for further research and reflection. The different cases and perspectives urge readers to consider the impact, democratic legitimacy, and relevance of alternative science communication, and the challenges that alternative science communicators pose for science communication and society.

Often, new social movements engaged with science and society are characterised as contesting objectivity; the neutrality of modern science seeking to legitimise ‘lay perspectives’. It has been an article of faith among scholars to view third world movements as anti-science, anti-modernity and post-developmentalist. This commentary describes ideological framework, modes of action and organisation of the All India People’s Science Network (AIPSN), one of the People’s science movement (PSMs) active for more than the past four decades. They dispute the dominant development trajectory and science and technology-related policies for reinforcing the existing inequities. Nevertheless, they see ‘science’ as a powerful ally for realising their radical emancipatory vision of ‘science for social revolution’. Mobilising ‘science activists’ as unique alternate communicators, they strive for lay-expert collaboration. The canonical framing of third world social movements as postcolonial and anti-modern does not capture this unique case from India. Further studies are required to tease out such strands of social movements elsewhere.

Environmental NGOs play a vital role in public climate communication through their awareness-raising activities and educational campaigns. This commentary points to a potentially problematic implication of their role as climate science advocates which includes the general tendency to attribute environmental changes and extreme weather events to climate change. These climate-centric framings, however, may not resonate with the lived experiences and belief systems of local communities, not even in geographically vulnerable areas. I draw on local case studies to show that communities often express a sense of “shared responsibility” between global carbon dioxide emissions and ecologically deleterious local practices such as shrimp farming (in Bangladesh) and cutting trees (in the Philippines). As a consequence, the studies show mismatches between activists' attributions of local circumstances and events, and local communities' ways of knowing their local circumstances.

This book review considers the contribution of Communicating Science, A Global Perspective to our understanding of the history of science communication across the globe. With 40 chapters and nearly 1000 pages of text, this substantial book provides insights into the unique histories of science communication in 39 countries across all regions of world.

This paper analyzes a new initiative in Brazil’s ‘Ciência Hoje’ magazine, called “Interactive Articles”, aimed at understanding how stakeholders relate to interactivity when writing a science communication article. We investigated participation in two platforms (magazine website and Facebook page) and interviewed the authors concerning the tool’s impact on their articles. Comments were examined using intensity analysis and content analysis, while interviews were analyzed with the collective subject discourse method. The study concluded that the novel initiative presented positive results in terms of interactivity and was regarded as public engagement and contextual model of science communication from the interviewed authors.

Today, thanks to the consolidation of Internet, users have access to many sources of information on health issues. On social networks, there are profiles of health professionals who share content that generates credibility when published by specialists who are knowledgeable in the sector. These profiles include pharmaceutical professionals who disseminate and create content based on scientific knowledge. Pharmaceutical influencers on Instagram have an informative role on health, nutrition and cosmetic dermatology issues. This research aims to learn about the communication management of these influencers during the Coronavirus crisis in Spain and how they have modified their habitual discourse, as well as seeking to identify the formats of their publications that generate greater engagement and conversions among their followers.

The onset of the COVID-19 pandemic has highlighted the criticality of science communication. Utilising a mixed-methods approach, this article takes an audience-focused perspective to analysing COVID-19 related social media posts on 23 popular South Pacific community Facebook pages over a four-month period across eight South Pacific countries. We analyse how audiences co-opt scientific terms, address information gaps and embed it in their lived experience. It is ascertained that online conversations around COVID-19 in the Pacific are intermeshed with both scientific fact and, personal accounts and rumours, referred to locally as ‘coconut wireless’, problematising established modes of empirical enquiry.

The Mission Mosquito Information Sharing Program (ISP), a collaboration between the U.S. Department of State and Battelle Memorial Institute, is a public diplomacy effort to build and expand an international network of health communicators to increase engagement on mosquito-borne disease. Nineteen professionals from countries experiencing mosquito-borne diseases engaged in a two-week multi-directional information exchange across the United States in May 2018. Program alumni applied knowledge and tools from the ISP in follow-on projects and public outreach campaigns in their home countries. This paper summarizes the ISP and lessons learned, and highlights a science communication case study examining skills and understanding gained.