The model used is based on standardised Monday to Sunday surveillance weeks, as opposed to the 28-day periods previously reported on, enabling more timely weekly estimates to be produced.
Sylwer bod fel arfer oedi o 2 i 3 wythnos yn amcangyfrif SAGE a bod oedi yn achos amcangyfrif PHW, sy’n defnyddio methodoleg wahanol, o tua 1 wythnos.