of the 940,580 close contacts that were eligible for follow-up, 854,387 (90.8%) were successfully contacted and advised accordingly, or had their case otherwise resolved
o blith y 940,580 o gysylltiadau agos a oedd yn gymwys i'w holrhain, cysylltwyd a chynghorwyd â 854,387 (90.8%) yn llwyddiannus, neu chafwyd eu hachos ei ddatrys yn syth