A range of contact tracing measures designed to find asymptomatic Covid-19 cases will be rolled out in Northern Ireland this week, Health Minister Robin Swann said.
Testing of healthcare workers will begin to enable early identification and speedy isolation to reduce the risk of onward transmission.
Checking of students who do not display symptoms at Queen's University is also scheduled to start this week using lateral flow devices, with plans for the wider population of students.
Mr Swann said: "The learning arising from these... will help us better understand how these new asymptomatic testing technologies can be implemented and extended more widely." Digital solutions to help warn people earlier are also being developed.