Mae asesiadau’n dal i gael eu cynnal i ganfod pa mor ddifrifol yw’r salwch a pha mor bell mae wedi lledaenu. Nid yw Sefydliad Iechyd y Byd wedi datgan Argyfwng Iechyd y Cyhoedd sy'n Destun Pryder Rhyngwladol ac nid yw'n argymell unrhyw gyfyngiadau ar deithio nac ar fasnach.
The severity of the illness and its spread are still being assessed. The World Health Organisation has not declared a Public Health Emergency of International Concern (PHEIC) and it does not recommend any travel or trade restrictions.