TABLE 3.
Distribution of serum specimens according to the presence of IgM to phase II C. burnetii, LCN-PCR result, and time interval from onset of symptoms
| Category or characteristic | No. of specimens
|
|||
|---|---|---|---|---|
| Days 1 to 14 | Days 15 to 28 | Later than 28 days | Total | |
| Tested sera | 66 | 14 | 20 | 100 |
| Positive LCN-PCR and titer of IgM to phase II C. burnetii of ≥1:50 | 0 | 0 | 2 | 2 |
| Positive LCN-PCR and titer of IgM to phase II C. burnetii of <1:50 | 16 | 0 | 0 | 16 |
| Subtotal positive LCN-PCR | 16 | 0 | 2 | 18 |
| Negative LCN-PCR and titer of IgM to phase II C. burnetii of ≥1:50 | 9 | 10 | 18 | 37 |
| Negative LCN-PCR and titer of IgM to phase II C. burnetii of <1:50 | 41 | 4 | 0 | 45 |
| Subtotal negative LCN-PCR | 50 | 14 | 18 | 82 |