Table 1.
Distribution of pathogens among the febrile patients*
| ELISA screening [N = 360]† | IFA test (titer > 64) [N = 720]‡ | PRNT (titer ≥ 320) [N = 99] | PCR [N = 720]§ | Culture [N = 720] | ||
|---|---|---|---|---|---|---|
| Rickettsial infections | Typhus group (N = 720) | NT | 10 (1) | NA | 1 (0.1) | NT |
| Spotted fever group (N = 720) | NT | 132 (18) | NA | 0 | NT | |
| Scrub typhus group (N = 360) | NT | 63 (18) | NA | 2 (1) | NT | |
| Scrub typhus group (N = 360) | 107 (30) | NT | NA | NT | NT | |
| Coxiella burnetii (N = 360) | 10 (3) | 0 | NA | 0 | NT | |
| Leptospirosis (N = 720) | NT | NA | NA | NT | 2 (0.3) | |
| Chikungunya fever (N = 99) | 10 (10) | NA | 10 (10) | NT | NT | |
| Bartonella infections (N = 720) | NT | NA | NA | NT | 1 (0.1) | |
NT = not tested, NA = not applicable
* Values are n (%) unless otherwise indicated
† ELISA for Chikungunya virus were screened for 99 patients
‡ IFAT to detect Coxiella were performed for patients with positive or equivocal ELISA results
§ PCR for scrub typhus and Coxiella were performed for 360 patients