The infection may also appear after discharge from a healthcare setting, but are attributed to the time a person was in contact with the healthcare setting.
Gall yr haint ymddangos hefyd ar ôl i’r claf gael ei ryddhau o leoliad gofal iechyd, ond fe'i priodolir i'r amser yr oedd yr unigolyn mewn cysylltiad â'r lleoliad gofal iechyd.