PLOS Digital Health (Jun 2022)
Higher education responses to COVID-19 in the United States: Evidence for the impacts of university policy
Abstract
With a dataset of testing and case counts from over 1,400 institutions of higher education (IHEs) in the United States, we analyze the number of infections and deaths from SARS-CoV-2 in the counties surrounding these IHEs during the Fall 2020 semester (August to December, 2020). We find that counties with IHEs that remained primarily online experienced fewer cases and deaths during the Fall 2020 semester; whereas before and after the semester, these two groups had almost identical COVID-19 incidence. Additionally, we see fewer cases and deaths in counties with IHEs that reported conducting any on-campus testing compared to those that reported none. To perform these two comparisons, we used a matching procedure designed to create well-balanced groups of counties that are aligned as much as possible along age, race, income, population, and urban/rural categories—demographic variables that have been shown to be correlated with COVID-19 outcomes. We conclude with a case study of IHEs in Massachusetts—a state with especially high detail in our dataset—which further highlights the importance of IHE-affiliated testing for the broader community. The results in this work suggest that campus testing can itself be thought of as a mitigation policy and that allocating additional resources to IHEs to support efforts to regularly test students and staff would be beneficial to mitigating the spread of COVID-19 in a pre-vaccine environment. Author summary The ongoing COVID-19 pandemic has upended personal, public, and institutional life and has forced many to make decisions with limited data on how to best protect themselves and their communities. In particular, institutes of higher education (IHEs) have had to make difficult choices regarding campus COVID-19 policy without extensive data to inform their decisions. To better understand the relationship between IHE policy and COVID-19 mitigation, we collected data on testing, cases, and campus policy from over 1,400 IHEs in the United States and analyzed the number of COVID-19 infections and deaths in the counties surrounding these IHEs. Our study found that counties with IHEs that remained primarily online experienced fewer cases and deaths during the Fall 2020 semester—controlling for age, race, income, population, and urban/rural designation. Among counties with IHEs that did return in-person, we see fewer deaths in counties with IHEs that reported conducting any on-campus testing compared to those that reported none. Our study suggests that campus testing can be seen as another useful mitigation policy and that allocating additional resources to IHEs to support efforts to regularly test students and staff would be beneficial to controlling the spread of COVID-19 in the general population.