"Dros y tair wythnos diwethaf, mae nifer yr achosion o’r coronafeirws wedi codi'n sydyn i’r cyfraddau uchaf i ni eu gweld ers i'r pandemig ddechrau, ac mae mwy o bobl yn mynd mor ddifrifol wael nes bod angen triniaeth ysbyty arnyn nhw.
“Over the past three weeks, coronavirus cases have risen sharply to the highest rates we have seen since the pandemic began and more people are falling so seriously ill that they need hospital treatment.