Health boards were asked to ensure that the downgrading criterion was changed from the patient requiring 14 days post a positive COVID-19 test to requiring 10 days.
Gofynnwyd i fyrddau iechyd sicrhau bod y maen prawf israddio yn cael ei newid o fod angen ar y claf 14 diwrnod ar ôl prawf COVID-19 positif i fod angen 10 diwrnod.