Table 1. Rickettsia IgG results from participants with Orientia spp. seroconversion in a study of Orientia genus endemicity among severe infectious disease cohorts, Uganda*.
| Participant | Days after illness onset† |
Orientia spp.–positive titer‡ |
Spotted fever group titer |
Typhus group titer |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Acute | Conv. | Fold change | Acute | Conv. | Fold change | Acute | Conv. | Fold change | Acute | Conv. | ||||
| Mubende | ||||||||||||||
| A |
7 |
34 |
|
4 |
256 |
1,024 |
|
1 |
32 |
32 |
|
1 |
32 |
32 |
| Fort Portal | ||||||||||||||
| B | 2 | 32 | 8 | 64 | 512 | 1 | 32 | 32 | 1 | 32 | 32 | |||
| C | 14 | 36 | 4 | 128 | 512 | 1 | 32 | 32 | 1 | 32 | 32 | |||
| D | 1 | 38 | 4 | 128 | 512 | 1 | 32 | 32 | 1 | 32 | 32 | |||
*Conv., convalescent; IFA, immunofluorescent assay. †Sample collection after illness onset. ‡Karp strain IFA. Gilliam strain IFA seroconversion also observed in Fort Portal participant D (acute titers 1:512 and convalescent titers 1:2,048) but not among participants A-C.