However, we recognise that, in many parts of the world, more needs to be done to increase access to Covid-19 vaccines and the roll-out of vaccinations.
Serch hynny, rydym yn cydnabod bod angen gwneud mwy mewn sawl rhan o’r byd i gynyddu mynediad at frechlynnau Covid-19 a hybu ymdrechion brechu.