Volume 21, Number 4—April 2015
Dispatch
High Seroprevalence of Antibodies against Spotted Fever and Scrub Typhus Bacteria in Patients with Febrile Illness, Kenya
Table
Characteristic | SFG, no. positive/no. tested (%) | OR (95% CI) | STG, no. positive/no. tested (%) | OR (95% CI) |
---|---|---|---|---|
Sex | ||||
F | 96/1,094 (9) | 1.0 | 43/694 (6) | 1.0 |
M | 116/1,131 (10) | 1.2 (0.9–1.6) | 24/707 (3) | 0.5 (0.3–0.9†* |
Age, y | ||||
<5 | 41/1,107 (4) | 1.0 | 17/687 (3) | 1.0 |
5–12 | 62/622 (10) | 2.9 (1.9–4.4)† | 29/423 (6) | 2.9 (1.5–5.7) |
13–26 | 63/290 (22) | 7.2 (4.7–11.2)† | 10/ 166 (6) | 2.5 (1.0–6.0)† |
>26 | 46/206 (22) | 7.5 (4.6–12.1)† | 11/125 (9) | 3.8 (1.6–8.8)† |
Animal contact | ||||
Goats | ||||
No contact | 205/2,188 (9) | 1.0 | 60/1,372 (4) | 1.0 |
Contact | 7/37 (19) | 2.3 (0.8– 5.3) | 7/29 (24) | 7.0 (2.4–17.7)† |
Cows | ||||
No contact | 207/2,187 (10) | 1.0 | 65/1,377 (5) | 1.0 |
Contact | 5/38 (13) | 1.4 (0.4−3.8) | 2/24 (8) | 1.8 (0.2–7.7) |
Donkeys | ||||
No contact | 211/2,223 (10) | 1.0 | 67/1,399 (5) | 1.0 |
Contact | 1/2 (50) | 9.5 (0.1–748.8) | 0/2 (0) | 0 (0–38.7) |
Cats | ||||
No contact | 203/2,106 (10) | 1.0 | 66/1,315 (5) | 1.0 |
Contact | 9/119 (8) | 0.8 (0.3–1.5) | 1/86 (1) | 0.2 (0.05–1.3) |
Sheep | ||||
No contact | 212/2,218 (10) | 1.0 | 67/1,387 (5) | 1.0 |
Contact | 0/7 (0) | 0 (0–5.2) | 0/14 (0) | 0.0 (0–5.5) |
Dogs | ||||
No contact | 210/2,146 (10) | 1.0 | 67/1,398 (5) | 1.0 |
Contact | 2/79 (3) | 0.2 (0.03–0.9) | 0/3 (0) | 0.0 (0–11) |
Camels | ||||
No contact | 196/2,173 (9) | 1.0 | 67/1,365 (5) | 1.0 |
Contact | 16/52 (31) | 4.5 (2.3–8.5)† | 0/36 (0) | 0.0 (0.0–2.1) |
*SFG, spotted fever group; STG, scrub typhus group; OR, odds ratio.
†Seroprevalence for both spotted fever and scrub typhus increased with age; there were significant differences (p<0.05) between those <5 years of age and those in older age groups for SFG and those >12 years of age for STG. Exposure to SFG and STG were more likely in patients who had contact with dogs and camels for SFG and goats for STG (p<0.05). OR, odds ratio.
Page created: March 17, 2015
Page updated: March 17, 2015
Page reviewed: March 17, 2015
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.