Y cyngor yr ydym wedi’i gael gan Brif Swyddog Meddygol Cymru yw bod y dystiolaeth dros gadw pellter cymdeithasol o 2 fetr yn glir o ran yr effaith uniongyrchol ar iechyd: mae cadw 2 fetr o bellter yn rhoi mwy o ddiogelwch nag 1 metr – tua dwy i bum gwaith y diogelwch yn absenoldeb unrhyw fesurau eraill i ddiogelu unigolyn.
The advice we have received from the Chief Medical Officer for Wales is that the evidence for 2m social distancing is clear in respect of the immediate health impacts: maintaining a 2m distance provides more protection than 1m – approximately two to five times the protective value in the absence of any other measures to protect a person.