TABLE 1.
Sensitivity and specificity of the IgM and IgG rapid tests
| Test parameter and serum group | Sensitivity [no. positive/total (%)] and specificity [no. negative/total (%)] of tests
|
||
|---|---|---|---|
| IgG rapid test | IgM rapid test | IgG and IgM rapid test | |
| Sensitivity | |||
| Confirmed melioidosis infection | 30/30 (100) | 28/30 (93) | 30/30 (100) |
| Clinically suspected melioidosis infection | 5/15 (33) | 7/15 (47) | 8/15 (53) |
| ELISA negative or high-risk patient | 2/14 (14) | 4/14 (29) | 4/14 (29) |
| Specificity | |||
| P. aeruginosa | 4/4 (100) | 3/4 (75) | 3/4 (75) |
| Legionella sp. | 5/5 (100) | 4/5 (80) | 4/5(80) |
| Mycobacterium tuberculosis | 5/5 (100) | 4/5 (80) | 4/5 (80) |
| C. pneumoniae | 4/4 (100) | 4/4 (100) | 4/4 (100) |
| Leptospirosis | 10/10 (100) | 10/10 (100) | 10/10 (100) |
| ANA | 10/10 (100) | 10/10 (100) | 10/10 (100) |
| RF | 10/10 (100) | 10/10 (100) | 10/10 (100) |
| EBV | 10/10 (100) | 10/10 (100) | 10/10 (100) |
| Malaysian blood donors | 3/3 (100) | 3/3 (100) | 3/3 (100) |
| Thai blood donors | 16/20 (80) | 17/20 (85) | 16/20 (80) |
| Australian blood donors | 38/40 (95) | 40/40 (100) | 38/40 (95) |
| Total specificity | 115/121 (95) | 115/121 (95) | 113/121 (93) |