This document reports on the COVID-19 outbreak resulting from a 10-day (7-16 August 2020) motorcycle rally in South Dakota attended by approximately 460,000 persons From this single event, 51 confirmed primary event-associated cases, 21 secondary cases, and five tertiary cases were identified in Minnesota residents, for a total of 86 cases An additional nine likely rally-associated secondary or tertiary cases occurred Four patients were hospitalized, and one died Genomic sequencing supported the associations with the motorcycle rally These findings demonstrate the rationale for consistent mitigation measures, such as physical distancing and use of face masks, across states
COVID-19 outbreak associated with a 10-day motorcycle rally in a neighboring state -- Minnesota, August-September 2020