of the 8,475 close contacts that were eligible for follow-up, 7,373 (87%) were successfully contacted and advised accordingly, or had their case otherwise resolved
o blith y 8,475 o gysylltiadau agos a oedd yn gymwys i'w holrhain, cysylltwyd a chynghorwyd â 7,373 (87%) yn llwyddiannus, neu chafwyd eu hachos ei ddatrys yn syth