This week, Ashley Wann, health director of the Phelps-Maries County Health Department, told The Daily Beast that up to 200 Rolla High School students—and “numerous” parents—gathered indoors at Matt’s Steakhouse on Saturday, Nov. 7. Wann called it “a parent-organized event,” and the department has said students from the freshman through senior classes were present…

“We know that we will not be able to obtain a true picture of the impact this event had on our community,” Wann said. “Some individuals will choose not to report symptoms, some will choose not to be tested, and some may remain asymptomatic and spread it to others unknowingly, so a link back to the dance will not be made. Unfortunately there will be individuals that will be untruthful and intentionally withhold information, which is not unusual to contact tracing in general.”

Photos tagged at Matt’s Steakhouse on Instagram this week showed high schoolers in formalwear—black sequins, vests, and heels—smiling wide without masks in a room decorated with gold and blue balloons. One caption read: “Had to get one last party in before we go back to lockdown.”