The inevitable fallout from last month’s Sturgis Motorcycle Rally, an annual event that packed nearly 500,000 people into a small town in South Dakota, is becoming clear, and the emerging picture is grim. 

According to a new study, which tracked anonymized cellphone data from the rally, over 250,000 coronavirus cases have now been tied to the 10-day event, one of the largest to be held since the start of the pandemic. It drew motorcycle enthusiasts from around the country, many of whom were seen without face coverings inside crowded bars, restaurants, and other indoor establishments. 

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