Datganiad Ysgrifenedig: Brechiadau COVID-19 – Cyngor y Cyd-bwyllgor ar Imiwneiddio a Brechu a’r Prif Swyddog Meddygol ar frechu plant a phobl ifanc 12-15 oed
Written Statement: COVID-19 Vaccination – JCVI & Chief Medical Officers’ advice on vaccinating 12-15 year olds