A faith-based retreat for high school boys in Wisconsin morphed into a COVID-19 superspreader event, leaving 115 people positive for the novel coronavirus.
Business Insider reports 76% of campers and staffers came down with COVID-19 after a single camper developed symptoms. The camp implemented some mitigation strategies, like requiring the 152 attendees to quarantine at home for a week before travel.
However, it didn't require mask wearing or social distancing during the retreat.