TABLE 1.
Isolates presumptively and definitively identified as B. pseudomallei
| Species | No. of isolates tested | No. (%) of isolates identified as B. pseudomallei witha:
|
||
|---|---|---|---|---|
| Oxidase and susceptibility profile testing | Latex agglutination | qRT-PCR | ||
| B. pseudomallei | 30 | 29 (97) | 30 (100) | 30 (100) |
| B. thailandensis | 5 | 4 (80) | 0 (0) | 0 (0) |
| B. cepacia | 3 | 0 (0) | 0 (0) | 0 (0) |
| P. aeruginosa | 4 | 0 (0) | 0 (0) | 0 (0) |
| C. violaceum | 1 | 0 (0) | 0 (0) | 0 (0) |
a
Isolates tested by oxidase and susceptibility profile testing were presumptively identified, while isolates tested by latex agglutination and quantitative real-time PCR (qRT-PCR) were definitively identified. When presumptive identification was compared with definitive identification, presumptive identification had a sensitivity of 97%, a specificity of 69%, a positive predictive value of 88%, and a negative predictive value of 90% (P < 0.0001; Fisher's exact test).