Where there is any suspicion of the disease, livestock keepers and vets must report it so we can act fast and stop the virus getting a foothold.
Os oes gennych unrhyw amheuon bod anifail wedi dal y clefyd, rhaid i geidwaid a milfeddygon ei riportio er mwyn i ni allu gweithredu'n gyflym ac atal y feirws rhag ennill troedle.