This is a precautionary offer to increase their immunity against severe COVID-19 in advance of a potential future wave and to minimise disruption to their education.
Dyma gynnig rhagofalus i gynyddu eu himiwnedd yn erbyn COVID-19 difrifol cyn ton bosibl yn y dyfodol ac i amharu cyn lleied ag sy’n bosibl ar eu haddysg.