Data from a survey of 1478 travelers and multistep group structural equation model analysis revealed that the Health Belief Model constructs of cues to action (trust in third-party information sources), perceived severity of and susceptibility to COVID-19, and beliefs about the protection benefits of a COVID-19 vaccine, subsequently elicited willingness to vaccinate and beliefs that others should vaccinate prior to travel and enhanced support for pre-travel vaccination mandates. Also, significant differences in the perceived protection benefits of the vaccine and willingness to vaccinate were found across groups of travelers who travel more or less frequently and those with and without a prior positive test for COVID-19. The study provides a theoretically informed understanding of the dynamics that may enable the success of important health-related travel policy in the wake of COVID-19 and future pandemics and identifies the communication mechanisms that must be leveraged by governments and travel authorities in enforcing policy.

来自对 1478 名旅行者的调查和多步组结构方程模型分析的数据表明，健康信念模型构建了行动线索（对第三方信息源的信任）、对 COVID-19 的感知严重性和易感性以及对保护的信念COVID-19 疫苗的好处，随后引发了接种疫苗的意愿和其他人应该在旅行前接种疫苗的信念，并加强了对旅行前疫苗接种任务的支持。此外，在旅行频繁或不频繁的旅行者群体以及之前有和没有 COVID-19 检测呈阳性的旅行者群体中，发现疫苗的保护作用和接种意愿存在显着差异。