Ar 8 Hydref, rhoddais wybod ichi am broblem gyflenwi ledled y DU a oedd yn effeithio ar y gwaith o ddarparu’r pecynnau a’r adweithredyddion diagnostig a gyflenwir gan gwmni fferyllol Roche.
On 8thOctober, I made you aware of a UK wide supply problem affecting the provision of diagnostic kits and reagents supplied by the pharmaceutical company Roche.