More than 250 students and teachers from one Georgia school district are now quarantined, just one week into the new school year. Multiple teachers and students across the district’s schools have tested positive for COVID-19 after classes resumed Monday.

Cherokee County School District is sharing ongoing updates on coronavirus cases in its schools on its website. As of Friday, over a dozen students and teachers have tested positive, sending home hundreds of people after just five days of school.

Since the beginning of the week, at least 11 students and two staff members across elementary, middle and high schools have tested positive for coronavirus. The students’ ages span from first grade to twelfth grade.