Of the 1,093 close contacts that were eligible for follow-up, 94.9% were reached within 24 hours of being identified by a positive case.
O'r 1,093 o gysylltiadau agos a oedd yn gymwys ar gyfer camau dilynol, cyrhaeddwyd 94.9% ohonynt o fewn 24 awr o gael eu nodi gan achos positif.