NEW STUDY: Sturgis motorcycle rally was a 'superspreader event'

WASHINGTON — In early August, more than 460,000 motorcycle enthusiasts converged on Sturgis, S.D., for a 10-day celebration where few wore facial coverings or practiced social distancing. A month later, researchers have found that thousands have been sickened across the nation, leading them to brand the Sturgis rally a “superspreader” event. 

“The Sturgis Rally was one of the largest in-person gatherings since the outbreak of COVID-19 in the United States,” said Joseph J. Sabia, one of the study’s authors, a professor of economics and the director of the Center for Health Economics & Policy Studies at San Diego State University. He described the “public health costs” of the rally as “substantial and widespread.” He and his co-authors estimate that dealing with the fallout from the rally will involve more than $12 billion in health care costs.

“The spread of the virus due to the event was large,” the authors write, because it hosted people from all over the country. But the severity of the spread was closely tied to the approaches to the pandemic by Sturgis attendees’ home states. In some places, any spread related to people returning from the rally was blunted by strong mitigation measures, like a face-mask mandate or a prohibition against indoor dining. 

The findings come in a new paper, “The Contagion Externality of a Superspreading Event: The Sturgis Motorcycle Rally and COVID-19,” published by IZA — Institute of Labor Economics, a German think tank. Its four authors are all researchers affiliated with American universities.

It is not clear if the study was subject to peer review.  

The rally was held in a state whose governor, Kristi Noem, is a close Trump supporter and, like the president, a skeptic of many coronavirus mitigation measures, such as the wearing of face masks. ...