of the 302 close contacts that were eligible for follow-up, 268 (89%) were successfully contacted and advised accordingly, or had their case otherwise resolved
o blith y 302 o gysylltiadau agos a oedd yn gymwys i'w holrhain, cysylltwyd a chynghorwyd â 268 (89%) yn llwyddiannus, neu chafwyd eu hachos ei ddatrys yn syth