of UTown Residence North Tower at NUS were swabbed for COVID-19 in a special testing operation on Tuesday after viral material was detected in a wastewater sample.Low levels of COVID-19 viral ribonucleic acid were detected on Sunday from the National Environment Agency's testing of wastewater sample collected on Saturday from the hostel.
READ: NUS UTown hostel residents to take COVID-19 test after viral material found in wastewater sample“There is evidence to suggest that this may be due to viral shedding from a recovered past infection among the residents, but as a precautionary measure, MOH carried out special testing operations today to test residents of the affected apartments," said the health ministry.
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