Fig. 2From: COVID-19 prevention at institutions of higher education, United States, 2020–2021: implementation of nonpharmaceutical interventionsNPIs* implemented† by IHEs* in response to the COVID-19 pandemic by enrollment size‡ * NPIs, nonpharmaceutical interventions; IHEs, institutions of high education. † NPIs derived from CDC Guidance October 29, 2020 update of US Centers for Disease Control and Prevention Guidance for IHEs. ‡ Enrollment size based on total students enrolled for credit as reported by the Integrated Postsecondary Education Data SystemBack to article page