From: Cloning, expression and immunological evaluation of a short fragment from Rv3391 of Mycobacterium tuberculosis
n
OD450
No. of samples positive by ELISAa (%)
TB total
56
0.416 ± 0.297
17 (30.3%)
Smear-positive TB
30
0.537 ± 0.338
14 (46.7%)
Smear-negative TB
26
0.277 ± 0.152
3 (11.5%)
Healthy control subjects
50
0.165 ± 0.055
3 (6.0%)