of the 341,144 close contacts that were eligible for follow-up, 312,282 (92%) were successfully contacted and advised accordingly, or had their case otherwise resolved
o blith y 341,144 o gysylltiadau agos a oedd yn gymwys i'w holrhain, cysylltwyd a chynghorwyd â 312,282 (92%) yn llwyddiannus, neu chafwyd eu hachos ei ddatrys yn syth