This is a weekly summary of this information, plus additional detail on the number of tests on critical workers and the location that the test sample was collected and turnaround times of tests.
Mae Mae hi’n crynodeb wythnosol o'r wybodaeth hon, ynghyd â manylion ychwanegol ar nifer y profion ar weithwyr hanfodol, lleoliad casglu'r sampl a’r amseroedd ar gyfer dychwelyd y profion.