From the time positive cases were referred to the contact tracing system, 53.8% of all close contacts that were eligible for follow-up were reached within 24 hours.
O’r amser y cyfeiriwyd achosion positif i’r system olrhain cysylltiadau, cysylltwyd â 53.8% o’r holl gysylltiadau agos a oedd yn gymwys am gysylltiad dilynol o fewn 24 awr.