More than 1.75m people – two-thirds of people aged 12 and over – have received a booster or third dose of the Covid-19 vaccine.
I’r bobl ifanc sydd wedi cael haint COVID-19 ar unrhyw adeg ar ôl cael eu dos cyntaf o frechlyn, dylid rhoi’r ail ddos o frechlyn 12 wythnos neu ragor ar ôl yr haint COVID-19.