TABLE 2.
Specimen characteristics and PCR results for culture-positive tuberculosis casesa
| Tissue site (na) | Tissue age (yr) | PCR targetb |
|
|---|---|---|---|
| IS6110 | ITS | ||
| Lymph node (1), lung (1) | <0.5 | Pos | Pos |
| Mediastinum (1) | <0.5 | Pos | Neg |
| Lung (1), skin (1), endometrium (1) | <0.5 | Neg | Neg |
| Lung (3) | 1 | Pos | Neg |
| Lymph node (2), bone (1) | 1.5-2 | Pos | Pos |
| Bone (1) | 2.5 | Pos | Neg |
| Lung (2) | 2.5 | Neg | Neg |
| Lymph node (1), lung (1) | 3 | Neg | Neg |
| Lung (1) | 5 | Pos | Pos |
| Lymph node (1), lung (1) | 6-6.5 | Pos | Neg |
| Lymph node (2), bone (1) | 6-6.5 | Neg | Neg |
| Lung (2) | 6.5 | Pos | Pos |
| Lymph node (1), bone (1) | 7 | Neg | Neg |
| Lymph node (2), bone (1) | 8-8.5 | Pos | Neg |
| Lymph node (2) | 8.5 | Neg | Neg |
| Lymph node (1) | 9 | Pos | Pos |
| Lymph node (2) | 9 | Neg | Neg |
a
n, no. of specimens.
b
Pos, positive; Neg, negative.