of the 7,618 close contacts that were eligible for follow-up, 6,934 (91.0%) were successfully contacted and advised accordingly, or had their case otherwise resolved
o blith y 7,618 o gysylltiadau agos a oedd yn gymwys i'w holrhain, cysylltwyd a chynghorwyd â 6,934 (91.0%) yn llwyddiannus, neu chafwyd eu hachos ei ddatrys yn syth