GreenwoodPTO December 9, 2020 From the School Nurse, 2020-2021 From the School Nurse: Updated Quarantine Guidelines GreenwoodPTO December 9, 2020 From the School Nurse, 2020-2021 The Massachusetts Department of Public Health has adopted the new CDC quarantine guidelines. There are three options: 7 day, 10 day and 14 day. Each option has criteria that must be met. The options are explained here.