Table 2.
Positive detection of SARS-CoV-2 on saliva samples by rapid antigen tests
| Saliva-PCR | Flowflex (ZetaGene-Hughes) | Panbio (Abbott) | Joinstar | PCL |
|---|---|---|---|---|
| Ct<25 | 64% (7/11) | 45% (5/11) | 45% (5/11) | 55% (6/11) |
| 25≤ Ct<29 | 57% (4/7) | 57% (4/7) | 57% (4/7) | 43% (3/7) |
| 29≤ Ct<40 | 19% (3/16) | 13% (2/16) | 13% (2/16) | 13% (2/16) |
| COVID-19 duration | ||||
| Days ≤5 | 43% (3/7) | 29% (2/7) | 29% (2/7) | 29% (2/7) |
| 5< Days ≤10 | 56% (10/18) | 44% (8/18) | 44% (8/18) | 44% (8/18) |
| Days >10 | 11% (1/9) | 0% (0/9) | 0% (0/9) | 11% (1/9) |
| Saliva-PCR and COVID-19 duration | ||||
| Ct<25, Days<10 | 67% (6/9) | 44% (4/9) | 44% (4/9) | 56% (5/9) |