If it has been three months since your second dose and you do not believe you have received a letter, call or text about a booster appointment, please contact your local health board.
Os yw wedi bod yn dri mis ers eich ail ddos ac nad ydych yn credu eich bod wedi derbyn llythyr, galwad ffôn neu neges destun ar gyfer apwyntiad pigiad atgyfnerthu, cysylltwch â'ch bwrdd iechyd lleol.