of the 31,205 close contacts that were eligible for follow-up, 25,760 (83%) were successfully contacted and advised accordingly, or had their case otherwise resolved
o blith y 31,205 o gysylltiadau agos a oedd yn gymwys i'w holrhain, cysylltwyd a chynghorwyd â 25,760 (83%) yn llwyddiannus, neu chafwyd eu hachos ei ddatrys yn syth