Study from Omaha, Nebraska shows vast failure to detect COVID-19 in schools A recent study conducted in three Omaha, Nebraska, public schools shows that the vast majority of COVID-19 cases in K-12 schools are likely going undetected. The study, overseen by the University of Nebraska Medical Center, found that infection rates in the three schools were almost six times higher for students and two-and-a-half times higher for staff than what was recorded through self-initiated tests and reporting. The authors also found that “when compared to conventional reporting in our setting (passive case finding), our results suggest that as many as 9 in 10 student COVID-19 cases and 7 in 10 staff COVID-19 cases may be missed by conventional reporting mechanisms.”