COVID-19 testing in the Republic of Ireland can identify whether a person is infected with SARS-CoV-2, the virus which causes COVID-19. The developing and delivering of testing of Ireland was led by the staff in the National Virus Reference Laboratory. With the acquisition of the sequence of the virus, they used this to develop and validate in-house assays in advance of obtaining any commercial diagnostic kits. The NVRL played a vital role in the early detection of COVID-19 cases in Ireland,[1] and began playing a vital role in the detection of new variants of COVID-19 in 2021.