As a guide to who is eligible for the vaccine including the interval between doses, Public Health Wales have published information available here.
Fel canllaw ar gyfer pwy sy’n gymwys ar gyfer y brechlyn, gan gynnwys faint o amser i aros rhwng y dosau, mae Iechyd Cyhoeddus Cymru wedi cyhoeddi gwybodaeth, ac mae ar gael yma.