Almost 85% of adults aged 75 and over and almost 84% of care home residents have taken up the offer of a spring booster.
Mae bron i 85% o oedolion 75 oed a throsodd a bron i 84% o breswylwyr cartrefi gofal wedi manteisio ar y cynnig o bigiad atgyfnerthu yn y gwanwyn.