TABLE 1.
Day | Rat ID | Diseasea | Tissue burdenb | GM
|
PCR-ELISA
|
Real-time PCR
|
||
---|---|---|---|---|---|---|---|---|
Index | Resultd | Index | Result | Result | ||||
+2 | 1 | 0 | 0 | 1.250 | NEG | 0.207 | NEG | NEG |
2 | 0 | 0 | 0.589 | NEG | 0.221 | NEG | NEG | |
3 | 0 | 1 | 1.255 | NEG | 0.221 | NEG | NEG | |
+4 | 4 | 0 | 1.3 | 8.270 | POS | 10.329 | POS | POS |
5 | 0 | 1 | 0.454 | NEG | 0.225 | NEG | NEG | |
6 | 0 | 0 | 1.648 | POS | 5.141 | POS | NEG | |
+6 | 10 | 2 | 0 | 0.639 | NEG | 0.230 | NEG | NEG |
11 | 1 | 1 | 7.906 | POS | 2.343 | POS | NEG | |
+8 | 7 | 4 | 1.5 | >MCc | POS | 4.282 | POS | NEG |
8 | 3 | 1 | 2.774 | POS | 3.906 | POS | POS | |
9 | 1 | 1 | 0.589 | NEG | 0.033 | NEG | NEG | |
+10 | 16 | 4 | 1.9 | >MC | POS | 5.235 | POS | NEG |
17 | 3 | 1 | 0.818 | NEG | 1.690 | POS | NEG | |
18 | 1 | 1 | 0.343 | NEG | 5.418 | POS | NEG | |
+12 | 13 | 4 | 1.7 | 8.183 | POS | 3.455 | POS | NEG |
14 | 3 | 1.45 | 0.220 | NEG | 2.235 | POS | NEG | |
15 | 2 | 0 | >MC | POS | 2.418 | POS | NEG | |
+12 | 19 | 0 | 0 | 0.581 | NEG | 0.146 | NEG | NEG |
20 | 0 | 0 | 0.427 | NEG | 0.244 | NEG | NEG | |
21 | 0 | 0 | 0.253 | NEG | 0.582 | NEG | NEG | |
No. of infected animals with positive results/total no. | 8/17 | 11/17 | 2/17 |
Disease indicates the macroscopic extent of disease in livers, graded from 0 to 4.
Tissue burden indicates log CFU/gram of tissue cultured.
>MC OD was greater than the measurement capacity of the instrument. For the purposes of statistical analysis, these cases were assigned an index of 10.0. Rats 19, 20, and 21 are negative control animals in both groups.
NEG, negative; POS, positive.