of the 30,258 close contacts that were eligible for follow-up, 22,935 (75.8%) were successfully contacted and advised accordingly, or had their case otherwise resolved
o blith y 30,258 o gysylltiadau agos a oedd yn gymwys i'w holrhain, cysylltwyd a chynghorwyd â 22,935 (75.8%) yn llwyddiannus, neu chafwyd eu hachos ei ddatrys yn syth