of the 25,882 close contacts that were eligible for follow-up, 19,090 (73.8%) were successfully contacted and advised accordingly, or had their case otherwise resolved
o blith y 25,882 o gysylltiadau agos a oedd yn gymwys i'w holrhain, cysylltwyd a chynghorwyd â 19,090 (73.8%) yn llwyddiannus, neu chafwyd eu hachos ei ddatrys yn syth