A Covid-19 PCR test is considered the most accurate type of test to diagnose current infection of SARS-CoV-2, the coronavirus that causes Covid-19. PCR tests were the first type used to detect the virus in the UK back in February 2020 and have been available for longer than the ‘rapid’ lateral flow antigen test. PCR tests are provided by the NHS for anyone with the following symptoms of coronavirus: A high temperature A new, continuous cough A loss or change to your sense of smell or taste Anyone who does