of the 449 close contacts that were eligible for follow-up, 380 (85%) were successfully contacted and advised accordingly, or had their case otherwise resolved
o blith y 449 o gysylltiadau agos a oedd yn gymwys i'w holrhain, cysylltwyd a chynghorwyd â 380 (85%) yn llwyddiannus, neu chafwyd eu hachos ei ddatrys yn syth