Mae system olrhain cysylltiadau ar gyfer y boblogaeth gyfan yn cael ei hehangu ledled Cymru wrth i’r cyfyngiadau symud gael eu llacio, cyhoeddodd y Gweinidog Iechyd Vaughan Gething heddiw.
A population-wide contact tracing system is being rolled out across Wales as lockdown restrictions are eased, Health Minister Vaughan Gething has announced.