Some hospitals have taken the difficult decision to restrict visiting to prevent coronavirus from spreading among patients and staff; others are asking all visitors to wear face coverings.
Mae rhai ysbytai wedi gwneud y penderfyniad anodd i gyfyngu ar ymweliadau i atal y coronafeirws rhag lledaenu ymhlith cleifion a staff; mae eraill yn gofyn i bob ymwelydd wisgo gorchudd wyneb.