Rochester Public Schools sees decrease in quarantine numbers, masks still required despite executive order A statement from the Minnesota Department of Education clarified that "through the end of the 2020-21 school year (last teacher contact day), masks must continue to be worn by everyone inside school buildings or on a school bus." 2:28 pm, May 14, 2021 × For the first time since secondary students returned to in-person learning, the numbers of quarantined students has decreased in According to the district's COVID-19 dashboard, there were 21 new cases of COVID during the week of May 3-9. During the same period, there were 432 students and staff in quarantine. The number of people in quarantine was down by more than 200 from the week before when it hit a high of 651.