Instituto de Virología "Dr. J. M. Vanella", CONICET, Facultad Ciencias Médicas, Universidad Nacional de Córdoba, Enfermera Gordillo Gomez s/n, Ciudad Universitaria, Córdoba, Argentina.
Departamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, 05508-270, São Paulo, SP, Brazil.
Ticks Tick Borne Dis. 2018 Sep;9(6):1586-1589. doi: 10.1016/j.ttbdis.2018.08.005. Epub 2018 Aug 8.
Borrelia burgdorferi sensu lato (s. l.) spirochetes are associated with a wide range of vectors and hosts. Birds are important hosts in the ecology of some hard ticks (Ixodidae) in northwestern Argentina, where B. burgdorferi s.l. have been detected in Ixodes pararicinus. We evaluated Borrelia infection in ticks collected from wild birds by molecular analysis through the presence of Borrelia DNA (by nested-PCR targeting the fla gene). A total of 381 ticks (357 larvae and 24 nymphs) belonging to four species (I. pararicinus, Haemaphysalis juxtakochi, Haemaphysalis leporispalustris and Amblyomma sp.) were collected. Partial sequences of the fla gene of Borrelia (100% identical to Borrelia sp. haplotype I from Argentina) were detected in 9 of 70 tick pools (6 pools of larvae and 1 pool of nymphs of I. pararicinus, and in 2 pools of H. juxtakochi larvae) collected on Turdus rufiventris, Syndactila rufosuperciliata and Troglodytes aedon. The results of this study suggest that resident birds have reservoir capacity for Borrelia sp. haplotype I.
伯氏疏螺旋体（s. l.）旋体与广泛的载体和宿主有关。鸟类是阿根廷西北部一些硬蜱（Ixodidae）生态学中的重要宿主，在那里已经检测到伯氏疏螺旋体（s. l.）存在于 Ixodes pararicinus 中。我们通过分子分析评估了从野生鸟类身上采集的蜱虫的伯氏疏螺旋体感染情况，方法是通过针对 fla 基因的巢式 PCR 检测伯氏疏螺旋体 DNA 的存在。共采集了 381 只蜱虫（357 只幼虫和 24 只若虫），属于四个物种（I. pararicinus、Haemaphysalis juxtakochi、Haemaphysalis leporispalustris 和 Amblyomma sp.）。在从 Turdus rufiventris、Syndactila rufosuperciliata 和 Troglodytes aedon 上采集的 70 个蜱虫群（6 个 I. pararicinus 幼虫群和 1 个若虫群，以及 2 个 H. juxtakochi 幼虫群）中，有 9 个蜱虫群（6 个 I. pararicinus 幼虫群和 1 个若虫群，以及 2 个 H. juxtakochi 幼虫群）检测到 Borrelia （fla 基因的部分序列与来自阿根廷的 Borrelia sp. 单倍型 I 完全相同）。本研究结果表明，留鸟具有 Borrelia sp. 单倍型 I 的储库能力。
