“Mae hwn yn ffurf sy'n symud yn gyflym ar y coronafeirws, sydd â'r potensial i achosi ton fawr o heintiau yng Nghymru. Gallai hyn arwain at nifer fawr o bobl angen triniaeth ysbyty ar adeg pan mae ein GIG o dan bwysau sylweddol.
“This is a fast-moving form of coronavirus, which has the potential to cause a large wave of infections in Wales. This could lead to large numbers of people needing hospital treatment at a time when our NHS is under significant pressure.