Table 1.
Rapid antigen tests examined in this study.
| Name | Manufacturer | Method for Visualization a | Input Ratio b (%) | Minutes to Assess c | Country of Manufacture |
|---|---|---|---|---|---|
| Standard Q COVID-19 Ag | SD Biosensor | Color particle | 14.3 | 15–30 | Korea |
| Espline SARS-CoV-2 | Fujirebio | Alkaline phosphatase | 10.0 | 30 | Japan |
| QuickNavi -COVID19 Ag | Denka Seiken | Color latex | 12.5 | 15 | Japan |
| ImmunoAce SARS-CoV-2 | Tauns Laboratories | Platinum-gold colloid | 28.6 | 15 | Japan |
a The lysed sample is dropped into the well and the reaction occurs inside a covered plastic body. b For all rapid antigen tests (RATs) tested, the test samples (50 μL) were mixed with lysis buffer (A). A part of the lysed sample (B) was then assayed. Input ratios were calculated using the following formula: volume B/(50 μL + volume A) × 100. c The time required to obtain the results is based on the manufacturer’s instructions provided with the kit.