Mae’r dull profi ar gyfer COVID-19 mewn ysbytai yng Nghymru wedi cael ei ddiweddaru, gan fod y brechlynnau wedi bod yn effeithiol dros ben wrth leihau’r risg o gael salwch symptomatig, clefyd difrifol, mynd i’r ysbyty, a’r risg o farwolaeth.
The approach to testing for COVID-19 in hospital settings in Wales has been updated as vaccination has proven to be highly effective at reducing the risk of symptomatic illness, severe disease, hospitalisation and mortality.