drive-in centres and walk-throughs operating long opening hours have been utilised in many areas allowing people to choose the best time to take up the offer of a vaccine
Defnyddio canolfannau gyrru-i-mewn a cherdded i mewn sy'n gweithredu oriau agor hir mewn sawl ardal sy'n caniatáu i bobl ddewis yr amser gorau i fanteisio ar y cynnig o frechlyn