id author title date pages extension mime words sentences flesch summary cache txt cord-132051-pb4ppdlm Cai, Yong The 2020 Sturgis Motorcycle Rally and COVID-19 2020-09-05 .txt text/plain 1848 111 65 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. 2 This paper studies the effect of the Sturgis rally on subsequent COVID-19 case growth in the home counties of rally attendees. Combining this information with county-level COVID-19 case data from the New York Times we find that counties with relatively more rally attendees have higher COVID-19 case growth rates in the weeks following the rally. Column 1 of table 1 shows that a 1pp increase in Sturgis attendance increased growth in COVID-19 cases by 11pp on average in the weeks following the Rally. We examine the effect of the Sturgis Rally on COVID-19 case growth in the United States. We find counties with relatively more rally attendees experienced higher COVID-19 case growth in subsequent weeks. Other studies that have found large public gatherings do not affect case growth point to offsetting behavior that reduced possible COVID-19 transmission following the event. ./cache/cord-132051-pb4ppdlm.txt ./txt/cord-132051-pb4ppdlm.txt