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His Royal Highness The Duke of Edinburgh, 10 June 1921 to 9 April 2021

Read about the arrangements following The Duke of Edinburgh’s death

Vaughan Gething MS, Minister for Health and Social Services

First published:
19 January 2021
Last updated:

As a result of the laboratory testing quality control measures in place and the diligence of Public Health Wales laboratory staff, we became aware on Friday 15 January 2021 of an issue affecting a small number of swabs used in sampling for Covid-19. 

These swabs are used to sample for Covid-19 in hospital settings, at health board-run community testing units and WAST-operated mobile testing units. These swabs are not used by the lighthouse labs and so tests undertaken through our regional and local testing sites are unaffected.

As soon as this problem was discovered, all microbiology labs and testing centres in Wales were notified so that the affected swabs could be taken out of circulation.

NHS Wales Shared Services Partnership is working with Public Health Wales, Local Health Boards, the manufacturer of the swabs COPAN and the UK supplier/distributor Thermo Fisher Scientific to identify and isolate the swabs potentially affected to prevent their on-going use.

The affected swabs were shipped into Wales direct from the manufacturer COPAN between 18 November and 14 December 2020. NHS Wales Shared Services Partnership has isolated all relevant supplies as a precaution while further investigations are undertaken.

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.

The Covid-19 Test, Trace, Protect system continues to operate as normal and alternative swabs are being used.