Persuading people to mask Even in places where it is obligatory, people tend to optimistically overstate their compliance for mask wearing. How then can we persuade more of the population at large to act for the greater good? Abaluck et al . undertook a large, cluster-randomized trial in Bangladesh involving hundreds of thousands of people (although mostly men) over a 2-month period. Colored masks of various construction were handed out free of charge, accompanied by a range of mask-wearing promotional activities inspired by marketing research. Using a grassroots network of volunteers to help conduct the study and gather data, the authors discovered that mask wearing averaged 13.3% in villages where no interventions took place but increased to 42.3% in villages where in-person interventions were introduced. Villages where in-person reinforcement of mask wearing occurred also showed a reduction in reporting COVID-like illness, particularly in high-risk individuals. —CA

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社区掩蔽对 COVID-19 的影响：孟加拉国的一项整群随机试验

说服人们戴口罩 即使在必须戴口罩的地方，人们也倾向于乐观地夸大他们戴口罩的合规性。那么，我们如何才能说服更多的民众为更大的利益而行动呢？阿巴鲁克等人. 在孟加拉国进行了一项为期 2 个月的大型整群随机试验，涉及数十万人（尽管大多数是男性）。免费发放各种结构的彩色口罩，并根据市场研究开展了一系列戴口罩宣传活动。作者利用基层志愿者网络帮助开展研究和收集数据，发现在没有采取干预措施的村庄中，戴口罩的平均比例为 13.3%，但在进行了面对面干预的村庄中，戴口罩的比例增加到 42.3%。亲自加强佩戴口罩的村庄也显示出报告类 COVID 疾病的人数有所减少，尤其是在高危人群中。—CA