This issue has impacted the national performance measures for time taken to reach close contacts resulting in figures which we believe to be misleading.
Mae’r mater hwn wedi effeithio ar y mesurau perfformiad cenedlaethol ar gyfer yr amser y mae’n ei gymryd i gyrraedd cysylltiadau agos, ac o ganlyniad rydym o’r farn bod y ffigurau’n gamarweiniol.