Table 3.
Comparison of T. vaginalis (TV) concentrations from simulated swabs that were shipped in a dry or wet state and after heating the swab at 55°C for 5 days.
TV Concentration/ml |
TV wet |
RLUa (×1000) |
TV dry |
RLUa (×1000) |
TV dry heatedb |
RLUa (×1000) |
---|---|---|---|---|---|---|
10 7 | POS | 1580 | POS | 1621 | POS | 4452 |
10 7 | POS | 1619 | POS | 1597 | POS | 4172 |
10 6 | POS | 1597 | POS | 1488 | POS | 3847 |
10 6 | POS | 1606 | POS | 1458 | POS | 2802 |
10 5 | POS | 1606 | POS | 1252 | POS | 2510 |
10 5 | POS | 1553 | POS | 1284 | POS | 2710 |
10 4 | POS | 1320 | POS | 908 | POS | 1436 |
10 4 | POS | 1370 | POS | 1002 | POS | 1427 |
10 3 | POS | 1076 | POS | 325 | POS | 349 |
10 3 | POS | 1099 | POS | 443 | POS | 520 |
10 2 | POS | 364 | POS | 71 | POS | 104 |
102 | POS | 718 | NEG | 11 | NEG | 36 |
10 | POS | 261 | NEG | 19 | NEG | 26 |
10 | POS | 257 | NEG | 25 | NEG | 2 |
10 | POS | 347 | NEG | 13 | NEG | 18 |
10 | POS | 410 | NEG | 32 | NEG | 9 |
1 | POS | 67 | NEG | 1 | NEG | 1 |
1 | NEG | 30 | NEG | 3 | NEG | 1 |
1 | NEG | 56 | NEG | 6 | NEG | 1 |
1 | NEG | 20 | NEG | 3 | NEG | 8 |
1 | NEG | 32 | NEG | 2 | NEG | 4 |
1 | NEG | 31 | NEG | 1 | NEG | 1 |
1 | NEG | 33 | NEG | 2 | NEG | 3 |
1 | NEG | 40 | NEG | 2 | NEG | 3 |
1 | POS | 115 | NEG | 1 | NEG | 1 |
1 | NEG | 23 | NEG | 2 | NEG | 1 |
RLU = Relative Light Unit measure for the Gen-Probe TRIC APTIMA test. Positive T. vaginalis specimens have RLUs >60 thousands.
Heated test was conducted after the specimen was maintained at 55°C for 5 days.
Negative controls (10) tested were all negative.