The Sturgis Motorcycle Rally that took place from August 7-16 was one of the largest public gatherings since the start of the COVID-19 outbreak. Over 460,000 visitors from across the United States travelled to Sturgis, South Dakota to attend the ten day event. Using anonymous cell phone tracking data we identify the home counties of visitors to the rally and examine the impact of the rally on the spread of COVID-19. Our baseline estimate suggests a one standard deviation increase in Sturgis attendance increased COVID-19 case growth by 1.1pp in the weeks after the rally.

中文翻译：

---

2020 年斯特吉斯摩托车拉力赛和 COVID-19

8 月 7 日至 16 日举行的斯特吉斯摩托车拉力赛是自 COVID-19 爆发以来规模最大的公众集会之一。来自美国各地的超过 460,000 名游客前往南达科他州的斯特吉斯参加为期十天的活动。我们使用匿名手机跟踪数据确定集会访客的家乡县，并检查集会对 COVID-19 传播的影响。我们的基线估计表明，在反弹后的几周内，斯特吉斯的出席人数每增加一个标准差，COVID-19 病例的增长就会增加 1.1 个百分点。