of the 794,480 close contacts that were eligible for follow-up, 719,229 (90.5%) were successfully contacted and advised accordingly, or had their case otherwise resolved
o blith y 794,480 o gysylltiadau agos a oedd yn gymwys i'w holrhain, cysylltwyd a chynghorwyd â 719,229 (90.5%) yn llwyddiannus, neu chafwyd eu hachos ei ddatrys yn syth