Positive psychology is the study of what is "right" about people-their positive attributes, psychological assets, and strengths. Its aim is to understand and foster the factors that allow individuals, communities, and societies to thrive. Cross-sectional, experimental, and longitudinal research demonstrates that positive emotions are associated with numerous benefits related to health, work, family, and economic status. Growing biomedical research supports the view that positive emotions are not merely the opposite of negative emotions but may be independent dimensions of mental affect. The asset-based paradigms of positive psychology offer new approaches for bolstering psychological resilience and promoting mental health. Ultimately, greater synergy between positive psychology and public health might help promote mental health in innovative ways.

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Despite extensive exploration into the use of language in climate change communication, our understanding of the use of visual images, and how they relate to public perceptions of climate change, is less developed. A limited set of images have come to represent climate change, but rapid changes in the digital landscape, in the way media and information are created, conveyed, and consumed has changed the way climate change is visualized. We review the use of climate imagery in digital media (news and social media, art, video and visualizations), and synthesize public perceptions research on factors that are important for engaging with climate imagery. We then compare how key research findings and recommendations align with the practical strategies of campaigners and communicators, highlighting opportunities for greater congruence. Finally, we outline key challenges and recommendations for future directions in research. The increasingly image‐focused digital landscape signals that images of climate change have a pivotal role in building public engagement, both now, and in future. A better understanding of how these images are being used and understood by the public is crucial for communicating climate change in an engaging way. This article is categorized under: Perceptions, Behavior, and Communication of Climate Change > Perceptions of Climate Change

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Rapid COVID-19 diagnosis in the hospital is essential, although this is complicated by 30%–50% of nose/throat swabs being negative by SARS-CoV-2 nucleic acid amplification testing (NAAT). Furthermore, the D614G spike mutant dominates the pandemic and it is unclear how serological tests designed to detect anti-spike antibodies perform against this variant. We assess the diagnostic accuracy of combined rapid antibody point of care (POC) and nucleic acid assays for suspected COVID-19 disease due to either wild-type or the D614G spike mutant SARS-CoV-2. The overall detection rate for COVID-19 is 79.2% (95% CI 57.8–92.9) by rapid NAAT alone. The combined point of care antibody test and rapid NAAT is not affected by D614G and results in very high sensitivity for COVID-19 diagnosis with very high specificity.