Table 1.
Ct Values for Asymptomatic Patients Pooled with Sterile Viral Transport Media
| Patient | Dilution | Ct1 | Ct2 |
|---|---|---|---|
| 1 | 3:1 | 32.16 | 34.39 |
| 5:1 | 32.2 | 34.12 | |
| 7:1 | 32.23 | 34.29 | |
| 2 | 3:1 | 22.01 | 22.43 |
| 5:1 | 22.55 | 22.81 | |
| 7:1 | 22.96 | 23.34 | |
| 3 | 3:1 | 22.42 | 23.04 |
| 5:1 | 23.38 | 24.05 | |
| 7:1 | 23.4 | 23.88 | |
| 4 | 3:1 | 21.69 | 22.37 |
| 5:1 | 22.0 | 22.65 | |
| 7:1 | 22.15 | 22.82 | |
| 5 | 5:1 | 28.43 | 28.65 |
| 7:1 | 29.92 | 30.17 | |
| 6 | 5:1 only | 24.98 | 25.71 |
| 7 | 5:1 only | 32.35 | 32.86 |
| 8 | 5:1 only | 29.09 | 29.46 |
| 9 | 5:1 only | 32.35 | 32.86 |
Ct, threshold cycle; EUA, emergency use authorization; FDA, U.S. Food & Drug Administration.
Pool dilution for routine use in populations with low prevalence was submitted to the FDA for EUA purposes at a 5:1.