Table 2.
Diagnosisa | Microbiology | U-LAMb ELISA OD450 | U-LAM Detectionc | GC-MS (ng/mL)d | ||
---|---|---|---|---|---|---|
Smeare | Culturef | CS35/A194 | L1AM04/T1AM09 | |||
Pulmonary TB | pos | Mtb | 1.649 | 1.531 | Positive | 25 |
Pulmonary TB | pos | Mtb | 0.894 | 0.627 | Positive | 14.3 |
COPD, Pneumonia | neg | neg | 0.233 | 0.210 | Negative | Not detected |
Pneumonia, TB unlikely | neg | neg | 0.196 | 0.221 | Negative | Not detected |
aAll four patients were HIV uninfected.
bCapture ELISA for the detection of LAM in urine (U-LAM).
cU-LAM detection above cut-off based on background values for healthy control urine for each mAb pair by capture ELISA (OD450 0.259 for CS35/A194 mAb pair and 0.335 for L1AM04/T1AM09 mAb pair, respectively).
dQuantification of U-LAM by gas chromatography-mass spectrometry (GS-MS) D-Arabinose detection method.
eSputum smear microscopy for acid fast bacilli (AFB).
fMycobacterial culture of sputum.