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Fig. 1 | BMC Public Health

Fig. 1

From: COVID-19 prevention at institutions of higher education, United States, 2020–2021: implementation of nonpharmaceutical interventions

Fig. 1

Timeline of IHE* academic calendars† and weekly national COVID-19 incidence‡. * IHE, institution of higher education. † 2020–2021 Academic calendar dates collected from each IHE website. Median (50th percentile) and IQR (25th and 75th percentile) were calculated for milestone dates. ‡ Weekly Incidence (cases per week per 100,000 people) derived from JHU CSSE COVID-19 Data and U.S. Census Bureau 2020 population estimation. § Thanksgiving median and IQR, and winter break IQR dates encompass November 25–29, 2020

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BMC Public Health

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