The “Go To Travel” campaign in Japan, which encouraged people to travel throughout the country, was started in July 2020 to revitalize economic activity that was sluggish due to COVID-19. Although risks of infection spread have been reported for tourists crossing prefectural borders, the spread of infection among residents living in sightseeing resort areas is unclear. This study evaluated the number of COVID-19 cases in residents of sightseeing resort areas in Gunma Prefecture using the descriptive epidemiological method. Data about infected individuals were obtained from open data on the prefectural official homepage. Evaluation of epidemic curves showed that the number of infected cases increased slightly after the start of the campaign, with numbers affected by the occurrence of clusters. Toward the end of 2020, the number of affected cases increased in both resort areas and non-resort areas, with the increase being smaller in resort areas. Thus, the increased occurrence of infection during the campaign suggested a need to take additional preventive measures more so for tourists than for resort area residents.

日本于 2020 年 7 月启动了“Go To Travel”运动，该运动鼓励人们在全国各地旅行，以振兴因 COVID-19 而低迷的经济活动。尽管有报道称，跨越县界的游客有感染传播的风险，但居住在观光度假区的居民之间的感染传播情况尚不清楚。本研究使用描述性流行病学方法评估了群马县观光度假区居民的 COVID-19 病例数。有关感染者的数据是从县官方主页上的公开数据中获得的。对流行曲线的评估表明，运动开始后感染病例数略有增加，数量受集群发生的影响。到 2020 年底，度假区和非度假区的受影响病例数量均有所增加，度假区的增幅较小。因此，运动期间感染发生率的增加表明，与度假区居民相比，需要对游客采取更多的预防措施。