Mae Llywodraeth y DU wedi caffael brechlynnau ar ran y pedair cenedl. Brechlyn AstraZeneca – Oxford AstraZeneca gynt – yw tua 100 miliwn o'r rhain, a bydd Cymru yn cael ei dyraniad yn seiliedig ar ei phoblogaeth dros yr wythnosau a'r misoedd nesaf.
The UK Government has procured vaccines on behalf of the four nations and around 100m of these are of the AstraZeneca vaccine - formerly known as Oxford AstraZeneca - with Wales receiving its allocation based on population over the next weeks and months.