Yn ôl yr arbenigwyr, ni fydd lefel y risg yn debygol o newid cyn y daw’r Parth Atal presennol i ben ar 28 Chwefror.  O ystyried hynny ac ar ôl holi barn cynrychiolwyr y diwydiant a milfeddygon, mae Ysgrifennydd y Cabinet wedi penderfynu creu Parth Atal newydd a ddaw i rym ganol nos 28 Chwefror.
Expert advice suggests it is unlikely the current level of risk will change before the current Prevention Zone is scheduled to end on 28 February. In view of this, and following consultation with industry and veterinary representatives, the Cabinet Secretary has decided to put in place a new Prevention Zone, that will take effect from midnight on 28 February.