Table 7. Comparison of C. pecorum LAMP and qPCR for organism detection using rapidly processed swab samples and their DNA extracts.
Sample | LAMPa result for swab suspension | qPCRb result for swab suspension | LAMP result for DNA extract | qPCR result for DNA extract | LAMP result for “spiked” swab suspension | LAMP result for “spiked” DNA extract | qPCR result for “spiked” swab suspension | qPCR result for “spiked” DNA extract |
---|---|---|---|---|---|---|---|---|
K1 ocularc | NEG | NEG | 0.00/83.49 | NEG | NEG | – | NEG | – |
K6 ocularc | NEG | NEG | 21.00/83.23 | 3 × 103 (Ct 20) | NEG | – | NEG | – |
K9 ocularc | NEG | NEG | 25.45/83.39 | 287 (Ct 24) | NEG | – | NEG | – |
K2 ocularc | NEG | NEG | NEG | NEG | NEG | – | NEG | – |
R1 eye | 25.45/83.39 | 222 (Ct 25) | 20.15/83.27 | 750 (Ct 24) | – | – | – | – |
R1 cloaca | 30.00/83.34 | NEG | NEG | NEG | 11.15/83.47 | 12.15/83.42 | 5 × 103 (Ct 17) | 1.5 × 103 (Ct 18) |
K eye | 27.00/83.15 | NEG | 0.00/83.35 | NEG | – | – | – | – |
Koala 2 eye | NEG | NEG | NEG | NEG | 11.00/83.51 | 11.00/83.40 | 1.2 × 103 (Ct 19) | 1.1 × 104 (Ct 15) |
Koala 2 cloaca | 27.30/83.77 | 116 (Ct 26) | 21.30/83.49 | 375 (Ct 25) | – | – | – | – |
Will Cloaca | 0.00/83.77 | NEG | NEG | NEG | 12.00/83.45 | 11.00/83.34 | 1.5 × 103 (Ct 19) | 8 × 103 (Ct 17) |
23117 Eye | 21.30/83.20 | NEG | 23.15/83.23 | 150 (Ct 25) | – | – | – | – |
23117 Cloaca | 22.00/83.29 | NEG | 24.00/83.15 | 90 (Ct 27) | – | – | – | – |
Flyn eye | NEG | NEG | NEG | NEG | 12.30/83.50 | 11.00/83.35 | 1.9 × 103 (Ct 18) | 8.3 × 103 (Ct 16) |
Tyke eye | NEG | NEG | NEG | NEG | 12.00/83.44 | 10.45/83.40 | 1.3 × 103 (Ct 19) | 9 × 103 (Ct 16) |
Bill eye | NEG | NEG | NEG | NEG | 12.15/83.49 | 10.45/83.34 | 1.2 × 103 (Ct 19) | 1 × 104 (Ct 15) |
Ray eye | NEG | NEG | NEG | NEG | 12.45/83.49 | 11.00/83.40 | 4.7 × 103 (Ct 17) | 1 × 104 (Ct 15) |
Ray cloaca | NEG | NEG | NEG | NEG | 12.15/83.43 | 11.00/83.30 | 700 (Ct 20) | 9 × 103 (Ct 16) |
Koala F Eye | NEG | NEG | NEG | NEG | 11.45/83.45 | 11.00/83.35 | 1.3 × 103 (Ct 19) | 1.1 × 104 (Ct 15) |
Notes.
LAMP results are expressed as time to amplify (min) and melt (°C).
qPCR results are expressed as copies/reaction and Ct value.
RNA Later swabs.