Table 3. Prevalence, mean abundance, and mean intensity of fleas, as well as the prevalence of Bartonella DNA from black rats captured from five hydrographic zones and 21 localities in Chile.
| Hydrographic zone | Locality | Number rodent | % Prevalence of fleas [95% CI] | Abundance mean of fleas [95% CI] | Intensity mean of fleas [95% CI] | Number of fleas analyzed | Number of fleas positive to gltA (%) | Number of fleas positive rpoB (%) |
|---|---|---|---|---|---|---|---|---|
| Hyper-arid | IquiqueC | 2 | 50.0 [0.01–0.99] | 5.5 [0.00–5.50] | 11.0* | 11 | 7 (63.6) | 5 (71.4) |
| N.P. Pampa del TamarugalW | 10 | 0.0 | 0.0 | – | 0 | 0 (0.0) | 0 (0.0) | |
| Arid | IllapelC | 17 | 76.5 [0.50–0.93] | 3.2 [1.53–4.00] | 4.2 [2.15–5.00] | 33 | 2 (6.1) | 1 (3.0) |
| Monte PatriaC | 14 | 42.9 [0.13–0.65] | 0.9 [0.14–1.14] | 2.0 [1.00–2.20] | 7 | 1 (14.3) | 1 (14.3) | |
| El MoraiV | 8 | 25.0 [0.03–0.65] | 0.5 [0.00–1.50] | 2.0 [1.00–2.00] | 4 | 0 (0.0) | 0 (0.0) | |
| Canela BajaV | 6 | 50.0 [0.12–0.88] | 1.8 [0.17–4.67] | 3.7 [1.00–5.67] | 8 | 2 (25.0) | 7 (87.5) | |
| SotaquíV | 14 | 85.7 [0.57–0.98] | 4.8 [2.57–7.21] | 5.6 [3.25–8.17] | 40 | 21 (52.5) | 13 (32.5) | |
| Semi-arid | Til TilC | 3 | 33.3 [0.01–0.91] | 0.3 [0.00–0.67] | 1.0* | 1 | 0 (0.0) | 0 (0.0) |
| Santa CruzC | 5 | 20.0 [0.01–0.72] | 0.2 [0.00–0.40] | 1.0* | 0 | 0 (0.0) | 0 (0.0) | |
| Huertos FamiliaresV | 2 | 0.0 | 0.0 | – | 0 | 0 (0.0) | 0 (0.0) | |
| LololV | 1 | 100.0 [0.25–1.00] | 4.0* | 4.0* | 4 | 0 (0.0) | 1 (25.0) | |
| N.P. La CampanaW | 22 | 22.7 [0.08–0.45] | 0.6 [0.18–1.14] | 2.6* | 13 | 1 (7.7) | 1 (7.7) | |
| N.R. Laguna TorcaW | 2 | 50.0 [0.01–0.99] | 2.5 [0.00–2.50] | 5.0* | 5 | 0 (0.0) | 2 (40.0) | |
| Sub-humid | QuirihueC | 77 | 13.0 [0.06–0.22] | 0.2 [0.09–0.40] | 1.6 [1.10–2.40] | 15 | 0 (0.0) | 0 (0.0) |
| ConcepciónC | 22 | 22.7 [0.08–0.45] | 0.4 [0.09–0.77] | 1.6 [1.00–2.20] | 8 | 0 (0.0) | 0 (0.0) | |
| CobquecuraV | 1 | 100.0 [0.02–1.00] | 2.0* | 2.0* | 2 | 0 (0.0) | 0 (0.0) | |
| FloridaV | 18 | 22.2 [0.64–0.48] | 0.3 [0.06–0.78] | 1.5 [1.00–2.00] | 6 | 0 (0.0) | 0 (0.0) | |
| N.R. NonguénW | 25 | 48.0 [0.28–0.69] | 0.8 [0.44–1.36] | 1.7 [1.17–2.58] | 9 | 1 (11.1) | 1 (11.1) | |
| Hiper-humid | Puerto AysénC | 4 | 25.0 [0.01–0.80] | 1.5 [0.0–3.0] | 6.0* | 5 | 2 (40.0) | 2 (40.0) |
| Punta ArenasC | 5 | 20.0 [0.01–0.72] | 0.2 [0.0–0.4] | 1.0* | 1 | 0 (0.0) | 0 (0.0) | |
| Puerto ChacabucoV | 3 | 33.3 [0.01–0.91] | 0.7 [0.0–1.33] | 2.0* | 2 | 0 (0.0) | 0 (0.0) |
Notes:
C, city; V, village; W, wild area; N.P., national park; N.R., national reserve.
*
One specimen of R. rattus was captured or only one individual was positive to fleas, the confidentiality intervals could not be determined.