Table 3.
Infection rate of tick pools with Coxiella burnetii and Rickettsia species
| Coxiella burnetii | Rickettsia spp. | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| No. of pools tested | Min. pool size | Max pool size | No. of positive pools | Mean infection rate (95% CI) | No. of positive pools | Mean infection rate (95% CI) | |||
| Amblyomma variegatum | 516 | 1 | 5 | 123 | 11.0 (9.3–13.0) | 344 | 38.6 (38.3–42.1) | ||
| Rhipicephalus sanguineus s.l. | 200 | 1 | 3 | 3 | 0.7 (0.2–2.2) | 15 | 3.5 (2.1–5.8) | ||
| Rhipicephalus spp. | 99 | 1 | 5 | 19 | 10.5 (6.8–16.0) | 22 | 12.2 (8.2–18.0) | ||
| Hyalomma truncatum | 56 | 1 | 3 | 5 | 4.5 (1.9–70.5) | 19 | 17.0 (11.0–25.7) | ||
| Hyalomma rufipes | 30 | 1 | 3 | 2 | 3.8 (1.0–14.5) | 14 | 30.2 (18.8–46.2) | ||
| Rhipicephalus evertsi | 10 | 1 | 3 | 0 | 0 | 1 | 5.1 (0.7–31.4) | ||
| Rhipicephalus (Boophilus) sp. | 1 | 1 | 1 | 0 | 0 | 1 | 100 | ||
| Total | 912 | 1 | 5 | 152 | 7.9 (6.8–9.2) | 416 | 24.5 (22.4–26.6) | ||