of the 30,698 close contacts that were eligible for follow-up, 24,285 (79.1%) were successfully contacted and advised accordingly, or had their case otherwise resolved
o blith y 30,698 o gysylltiadau agos a oedd yn gymwys i'w holrhain, cysylltwyd a chynghorwyd â 24,285 (79.1%) yn llwyddiannus, neu chafwyd eu hachos ei ddatrys yn syth