TABLE 1.
Specificity and sensitivity results of bartonellosis diagnostic immunoblots prepared by either sonication or glycine extraction of B. bacilliformis antigen
| Method | Resultsa
|
||||||||
|---|---|---|---|---|---|---|---|---|---|
| Acute disease
|
Chronic disease
|
Negative controls
|
|||||||
| + | − | Sensitivity (%) | + | − | Sensitivity (%) | + | − | Specificity (%)b | |
| Sonication | 7 | 3 | 70 | 30 | 2 | 94 | 0 | 80 | 100 |
| Glycine | 3 | 7 | 30 | 30 | 2 | 94 | 0 | 80 | 100 |
a
+, positive; −, negative.
b
Results reflect assay specificity in a healthy control group. Note that in patients identified with Q fever, brucellosis, and chlamydiosis, positive results occurred (Table 2).