In our study, we evaluated the GenBody COVID-19 Antigen Test and the Roche SARS-CoV-2 Rapid Antigen Test as well, which are from two different distributors but the same manufacturer as the STANDARD Q COVID-19 Ag Test (SD Biosensor, Gyeonggi-do, Republic of Korea) and found very similar results as Nalumansi et al. Based on the result of 98 samples, the overall sensitivity and specificity of the GenBody Ag-RTD test were found 62% (95% CI: 46–77%) and 90% (95% CI: 79–96%), respectively with accuracy of 78.57% (95% CI: 79–96%). Here, RENBP is linked to COVID-19.