Ar ôl i firws y Tafod Glas cael ei ganfod mewn gwartheg a fewnforiwyd i'r Alban a Lloegr, mae Prif Swyddog Milfeddygol Cymru, Christianne Glossop, wedi atgoffa ffermwyr Cymru am beryglon y clefyd.
Following the identification of bluetongue virus in imported cattle in Scotland and England, the Chief Veterinary Officer for Wales has reminded Welsh farmers of the risks of the disease.