Evaluation of the Boson rapid Ag test vs RT-PCR for use as a self-testing platform

The gold standard test available for detecting COVID-19 patients is Real Time RT-PCR. However, this method is expensive, needing special equipment and skilled laboratory staff. Recently, less expensive antigen tests have become available, that could easily and rapidly identify new COVID-19 cases. Our objective was to evaluate the Boson Rapid Antigen Test Card versus the RT-rtPCR, using samples taken both by laymen (self-testing) and professionals. The sensitivity, specificity and accuracy rates were, 98.18%, 100.00%, and 99.28%, respectively. The positive and negative predictive values were 100.00% and 98.82%, respectively. The detection rate for asymptomatic patients was 90.48%, and detection rate for Ct values ≥30 was 91.67%. Our results indicate a high coincidence rate between the Boson and the referencing RT-rtPCR method, meeting the performance standards recommended by the WHO. Therefore, this test could facilitate a fast self-testing screening method, for the detection of infected individuals.