Hyd yma, yr unig achos o Ffliw’r Adar Pathogenig Iawn a gafwyd mewn adar domestig yng Nghymru yw’r hwnnw a gadarnhawyd ar 3 Ionawr 2017 mewn haid o ieir a hwyaid mewn gardd gefn ym Mhont-y-berem, Sir Gaerfyrddin.  Gosodwyd cyfyngiadau ar y safle yn syth a chafodd yr adar eu difa.  Gosodwyd Parth Amddiffyn 3km a Pharth Gwyliadwriaeth 10km o gwmpas y safle i rwystro’r clefyd rhag lledaenu.
The first, and to date only, case of HPAI in domestic birds in Wales, was confirmed on 3 January 2017 in a small back yard flock of chickens and ducks on a premises near Pontyberem, Carmarthenshire. The premises were immediately put under restriction and the birds were subsequently humanely culled. A 3 km Protection Zone (PZ) and 10 km Surveillance Zone (SZ) was put in place around the premises to prevent the spread of disease.