The Detroit school district is moving to remote instruction for three Fridays in December, a decision district officials attributed to concerns about mental health, COVID cases, and school cleanliness. It comes as the state is leading the nation in new COVID cases. Meanwhile, classes are already moving online for students and staff at Renaissance High School. During the week of Nov. 5, the district reported 367 student and staff cases, with 857 students in quarantine. “Long-term we will accelerate the conversation about a vaccine mandate for employees and students knowing that this is the best strategy to keep students safe and in schools,” Vitti said.