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. Rhoddais ddiweddariad pellach ar 20 Hydref gan roi sicrwydd bod fy swyddogion wedi cydlynu camau i sicrhau cadwyn gyflenwi gadarn drwy gyfnod mwyaf difrifol y tarfu.
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.  I provided a further update on 20thOctober with reassurance that my officials had coordinated actions to secure a robust supply chain through the acute phase of the disruption.