Gyda’r cyfanswm sydd wedi’u brechu yn fwy na 523,000 erbyn heddiw, golyga hyn fod bron i un o bob chwech o oedolion yn awr wedi cael eu dos cyntaf o’r brechlyn sy’n diogelu bywyd.
As the total vaccinated exceeds more than 523,000 today, this now means almost one in every six adults have had their first dose of this life-protecting vaccine.