O ganlyniad i effeithiolrwydd ymateb y DU, mae nifer yr achosion wedi bod yn gostwng ar draws pedair gwlad y DU ers mis Gorffennaf. Ers 8 Tachwedd does dim achosion ychwanegol o mpox wedi eu nodi yng Nghymru.
The effectiveness of the UK response has meant that cases have been in decline across all four nations of the UK since July. Since 8 November no additional cases of monkeypox have been identified in Wales.