Ar hyn o bryd, nid yw'r dystiolaeth yn cefnogi profi pawb – mae'n awgrymu y dylid profi'r bobl hynny sydd â symptomau a sicrhau eu bod yn hunanynysu nes iddynt gael canlyniadau'r prawf.
At present, the evidence does not support blanket testing – it points to testing people who have symptoms and isolating them until the test results come back.