This interim guidance is based on what is currently known about the transmission and severity of coronavirus disease 2019 (COVID-19). This interim guidance is intended to help administrators of public and private institutions of higher education (IHE) prevent the spread of COVID-19 among students, staff, and faculty.The US Centers for Disease Control and Prevention (CDC) will update this guidance as needed and as additional information becomes available
https://www.cdc.gov/coronavirus/2019-ncov/community/guidance-ihe-response.html