of the 495,108 close contacts that were eligible for follow-up, 470,563 (95.0%) were successfully contacted and advised accordingly, or had their case otherwise resolved
o blith y 495,108 o gysylltiadau agos a oedd yn gymwys i'w holrhain, cysylltwyd a chynghorwyd â 470,563 (95.0%) yn llwyddiannus, neu chafwyd eu hachos ei ddatrys yn syth