The universal primary course of vaccine, previously offered to individuals aged 12 years and over and those in a clinical risk group aged between 6 months and 11 years, ended on 30 June 2023.
Daeth y cwrs sylfaenol cyffredinol o frechlyn, a gynigiwyd yn flaenorol i unigolion 12 oed a throsodd a'r rhai mewn grŵp risg clinigol rhwng 6 mis ac 11 oed, i ben ar 30 Mehefin 2023.