COVID in dorms led to roommate transmission 20% of the time, study saysOut of 574 multiple-occupancy dorm rooms, roommate transmissions occurred only 20% of the time, according to a study during the fall 2020 semester at the University of Colorado Boulder.The study, published late last week in The Journal of Infectious Diseases, looked at 6,408 dormitory students at the University of Colorado Boulder who were subject to a mandatory weekly COVID-19 test.
From Aug 24 to Nov 25, 2020, 16.5% tested positive, with most asymptomatic at the time of testing. Case investigations and contact tracing showed that many cases originated off campus.Cases occurred more in multiple-occupancy rooms than single rooms (19.1% vs 10.3%), but the researchers note