of the 903 close contacts that were eligible for follow-up, 888 (98.3%) were successfully contacted and advised accordingly, or had their case otherwise resolved
o blith y 903 o gysylltiadau agos a oedd yn gymwys i'w holrhain, cysylltwyd a chynghorwyd â 888 (98.3%) yn llwyddiannus, neu chafwyd eu hachos ei ddatrys yn syth