Of the 14,666 close contacts that were eligible for follow-up, 71.3% were reached within 24 hours of being identified by a positive case.
O'r 14,666 o gysylltiadau agos a oedd yn gymwys ar gyfer camau dilynol, cyrhaeddwyd 71.3% ohonynt o fewn 24 awr o gael eu nodi gan achos positif.