The winter respiratory vaccination strategy is guided by the latest clinical and scientific evidence and advice from the Joint Committee on Vaccination and Immunisation (JCVI).
Mae strategaeth frechu’r gaeaf yn erbyn feirysau anadlol wedi’i seilio ar y dystiolaeth a’r cyngor clinigol a gwyddonol diweddaraf gan y Cyd-bwyllgor ar Imiwneiddio a Brechu.