Heddiw, mae'r Cyd-bwyllgor ar Imiwneiddio a Brechu (JCVI) wedi rhoi datganiad gyda chyngor pellach ar y cynhyrchion brechlyn ar gyfer ymgyrch atgyfnerthu Covid-19 yr hydref.
The Joint Committee on Vaccination and Immunisation (JCVI) has today provided a statement with further advice on the vaccine products for the autumn COVID-19 booster vaccination campaign.