of the 454,279 close contacts that were eligible for follow-up, 432,395 (95.2%) were successfully contacted and advised accordingly, or had their case otherwise resolved
o blith y 454,279 o gysylltiadau agos a oedd yn gymwys i'w holrhain, cysylltwyd a chynghorwyd â 432,395 (95.2%) yn llwyddiannus, neu chafwyd eu hachos ei ddatrys yn syth