of the 13,072 close contacts that were eligible for follow-up, 11,657 (89%) were successfully contacted and advised accordingly, or had their case otherwise resolved
o blith y 13,072 o gysylltiadau agos a oedd yn gymwys i'w holrhain, cysylltwyd a chynghorwyd â 11,657 (89%) yn llwyddiannus, neu chafwyd eu hachos ei ddatrys yn syth