Heddiw (6 Ionawr) mae ffigurau diweddaraf y Swyddfa Ystadegau Gwladol yn dangos bod cyfraddau COVID-19 yng Nghymru wedi codi o 2% i 5%.
Today (6 January) the latest Office of National Statistics (ONS) figures show that rates of COVID-19 have increased from 1.89% to 5.7% in Wales.