'Superspreading' events, triggered by people who may be asymptomatic, propel virus pandemic
July 20, 2020
It wasn't until Day 7 of her team's coronavirus investigation when it dawned on Linda Vail, the health officer for Michigan's Ingham County, that this was going to be a big one. It had started with just two infections at the college bar on June 18, not long after the state began reopening. But the numbers quickly jumped to 12, then 18, then 34.
As of Friday, she was staring at a spreadsheet with 187 infected at Harper's Restaurant and Brew Pub.
"The tables were six feet apart, but no one stayed there," she said. "The DJ was playing music so people were shouting, the dance floor started to get crowded. We had flattened the curve and then boom."