Cyngor Iechyd Cyhoeddus Cymru yw, pan y defnyddiwyd y swabiau hyn, nad ydynt yn achosi dim neu fawr ddim risg i iechyd y cyhoedd.  Er diogelwch, gwneir mwy o wiriadau.  Gallai’r fater a ganfuwyd fod wedi effeithio ar gywirdeb cyfran fach o ganlyniadau prawf, gan arwain at ganlyniadau positif anghywir.  Fodd bynnag, ar sail yr hyn a wyddwn ar hyn o bryd, mae Iechyd Cyhoedd Cymru yn hyderus nad yw’n cael effaith ar y darlun epidemiolegol cyffredinol.
Public Health Wales have advised that where these swabs have been used they pose little or no risk to public health. As a safeguard, further checks are being undertaken. The issue detected may have affected the accuracy of a small proportion of test results leading to false positives. However, based on what we currently know Public Health Wales is confident that this does not affect the overall epidemiological picture.