From the time positive cases were referred to the contact tracing system, 63.9% of all close contacts that were eligible for follow-up were reached within 48 hours.
O’r amser y cyfeiriwyd achosion positif i’r system olrhain cysylltiadau, cysylltwyd â 63.9% o’r holl gysylltiadau agos a oedd yn gymwys am gysylltiad dilynol o fewn 48 awr.