While schools and universities across the U.S. monitor coronavirus outbreaks with human testing, Utah State University officials announced they've discovered evidence of the virus a different way.
The school found elevated amounts of COVID-19 in wastewater samples collected from four residence halls on campus.
Officials issued a safety alert on Sunday calling for mandatory testing and quarantine of all 287 students living in Rich, Jones, Morgan and Davis on-campus residence halls.
Classes started Monday at the school and some of the students had just moved into their rooms.