of the 399,564 close contacts that were eligible for follow-up, 379,334 (95%) were successfully contacted and advised accordingly, or had their case otherwise resolved
o blith y 399,564 o gysylltiadau agos a oedd yn gymwys i'w holrhain, cysylltwyd a chynghorwyd â 379,334 (95%) yn llwyddiannus, neu chafwyd eu hachos ei ddatrys yn syth