of the 292 close contacts that were eligible for follow-up, 258 (88%) were successfully contacted and advised accordingly, or had their case otherwise resolved
o blith y 292 o gysylltiadau agos a oedd yn gymwys i'w holrhain, cysylltwyd a chynghorwyd â 258 (88%) yn llwyddiannus, neu chafwyd eu hachos ei ddatrys yn syth