Mae’r amrywiolyn Omicron (a elwir hefyd yn B.1.1.529) wedi’i gysylltu ag Angola, Malawi, Mozambique a Zambia. Mae’r gwledydd hyn wedi’u hychwanegu at y rhestr goch, a hynny o 4.00am, ddydd Sul, 28 Tachwedd 2021.
The Omicron variant (also called B.1.1.529) has been linked to Angola, Malawi, Mozambique and Zambia. These countries have moved onto the red list from 4.00am, Sunday 28 November 2021.