of the 1,244,368 close contacts that were eligible for follow-up, 1,123,107 (90.3%) were successfully contacted and advised accordingly, or had their case otherwise resolved
o blith y 1,244,368 o gysylltiadau agos a oedd yn gymwys i'w holrhain, cysylltwyd a chynghorwyd â 1,123,107 (90.3%) yn llwyddiannus, neu chafwyd eu hachos ei ddatrys yn syth.