Ar hyn o bryd, mae dwy ffordd wahanol o brofi yng Nghymru; prawf i ganfod a oes gan rywun y feirws ar y pryd, a'r prawf gwrthgyrff a ddefnyddir i ddarganfod a yw person wedi'i heintio yn flaenorol.
There are currently two different forms of testing in Wales; the antigen virus detection test which shows if someone currently has the virus, and the antibody test which is used to determined whether a person has been previously infected.