O’n trafodaethau parhaus rydym yn ymwybodol o’r heriau sylweddol o ran storio, dosbarthu a thrin brechlyn newydd o’r math hwn. Yn benodol, yr angen i’w storio ar dymheredd isel iawn. Wrth i ragor o wybodaeth ddod ar gael, mae cynlluniau’r Byrddau Iechyd yn cael eu haddasu i sicrhau eu bod yn ddigon cadarn er mwyn i GIG Cymru ymateb i’r heriau hynny.
From our ongoing discussions  we are aware of the significant challenges of storing, distributing and handling a novel vaccine of this type. In particular its need for storage at very low temperatures.  As more information becomes available, Health Board plans are being adapted to ensure they are sufficiently robust for NHS Wales to respond to those challenges.