Vaccination continues to be our best defence against coronavirus – the vaccines have weakened the link between the virus and serious illness and hospitalisation.
Y rhaglen frechu yw’r ffordd orau o’n diogelu ni rhag y coronafeirws o hyd – mae’r brechiadau wedi gwanhau’r cysylltiad rhwng y feirws a salwch difrifol a’r nifer sy’n mynd i’r ysbyty.