Nineteen percent of the 1.4 million new coronavirus cases in the U.S. between Aug. 2 and Sept. 2 can be traced back to the Sturgis Motorcycle Rally held in South Dakota, according to researchers from San Diego State University's Center for Health Economics & Policy Studies. That's more than 266,000 coronavirus cases attributed to the 10-day event, which more than 460,000 people attended despite fears it could become a so-called super-spreader event...... Researchers from the Center for Health Economics & Policy Studies also studied the spread of COVID-19 tied to Black Lives Matter protests throughout the U.S. and concluded the...