https://www.npr.org/2021/08/04/1024902949/sturgis-bike-rally-friday-2021-covid-delta-variant

“The rally, which starts Friday, has become a haven for those eager to escape coronavirus precautions. Last year, the rally hardly slowed down, with roughly 460,000 people attending. Masks were mostly ditched as bikers crowded into bars, tattoo parlors and rock shows, offering a lesson in how massive gatherings could spread waves of the virus across the country.
This year — the 81st iteration of the rally — is expected to be even bigger, drawing people from around the U.S. and beyond”