IN-PERSON COLLEGE CLASSES LEAD TO ABOUT 3K COVID CASES DAILY
Reopening university and college campuses with primarily in-person classes is associated with a significant increase in cases of COVID-19 in the counties where the schools are located, according to a new study.
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"THE TOTAL SPIKE ATTRIBUTED TO FACE-TO-FACE CAMPUS REOPENINGS ACCOUNTS FOR NEARLY 6% TO 7% OF ALL CASES IN THE US DURING THIS TIME."
"Consequently, we are able to predict between 1,000 and 5,000 additional cases per day due to colleges reopening for face-to-face instruction, with our best estimate being somewhere around 3,000 cases per day or around 21,000 cases per week," says coauthor Anirban Basu, professor of health economics and director of the CHOICE Institute at the University of Washington School of Pharmacy.
IN-PERSON CLASS AND COVID SPIKES
More specifically, campuses with mostly in-person instruction contributed to increases in COVID-19 cases in their county by 0.024 cases per 1,000 residents. And, when students come from outside counties with surging cases, an additional 0.0119 per 1,000 residents come down with COVID-19.
"We don't see similar spikes in cases for counties with colleges that reopened with primarily online instruction. The keseluruhan spike attributed to face-to-face campus reopenings accounts for nearly 6% to 7% of all cases in the US during this time," Basu says.
"Given the timing of the mobility and kasus spikes," Basu adds, "these results are not likely a manifestation of additional testing or sick cases moving onto college campuses."
TRACKING PHONE MOVEMENT
One of the signals the researchers used to determine the increase of pengunjungs to a campus, whether for in-person instruction or on campuses with primarily online courses, was the increased presence of cellphones. Regardless of the tipe of instruction offered, the number of cellphones visiting campus increased significantly, in the week leading up to the start of classes and after classes had begun. However, cellphone trafik was higher on in-person campuses. And, counties with primarily online campuses did not see a statistically significant increase in COVID-19 cases.
"Our main data trek cellphone movement on and off campuses and county-level COVID-19 daily reported cases," Basu explains. "And, all evidence suggests there is a distinct local transmission component, given spikes in cases are happening two weeks after college opens. We also found spikes in cases to be higher for face-to-face colleges that drew students from communities that have seen recent spikes in cases."
The researchers add that campus administrators and other local authorities should use these findings when considering additional taktikes to mitigate COVID-19 outbreaks, and "think carefully" about cases in their counties as well as where students are coming from when rencana their spring 2020 semesters.
The study, which has not yet been peer ulasaned, appears the preprint server medRxiv and has been submitted to a journal for peer ulasan.
Additional coauthors are from the University of North Carolina at Greensboro, Indiana University Bloomington, the University of Washington, and Davidson College.