of the 29,318 close contacts that were eligible for follow-up, 25,763 (87.9%) were successfully contacted and advised accordingly, or had their case otherwise resolved
o blith y 29,318 o gysylltiadau agos a oedd yn gymwys i'w holrhain, cysylltwyd a chynghorwyd â 25,763 (87.9%) yn llwyddiannus, neu chafwyd eu hachos ei ddatrys yn syth