Migratory passerine birds as reservoirs of Lyme borreliosis in Europe.
Migratory passerine birds as reservoirs of Lyme borreliosis in Europe.
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DOI：
10.3201/eid1207.060127
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发表时间：
2006-07
影响因子：
11.8
通讯作者：
Bunikis J
中科院分区：
文献类型：
--
作者：
Comstedt P;Bergström S;Olsen B;Garpmo U;Marjavaara L;Mejlon H;Barbour AG;Bunikis J
鸟类是媒介蜱和疏螺旋体属物种的宿主，并且作为宿主的有效性各不相同。为了定义鸟类作为疏螺旋体螺旋体储存者和传播者的作用，我们对瑞典候鸟雀形目鸟类的蜱虫感染和储存能力进行了表征。从 13,260 只鸟类身上取出总共 1,120 只未成熟的蓖麻硬蜱，通过定量聚合酶链反应 (PCR) 检测疏螺旋体，然后进行 DNA 测序以进行物种和基因型鉴定。鸟类身上蜱虫的分布是聚集的，可能是因为在迁徙路线上蜱虫的遭遇不同。在 160 只 (14%) 蜱虫中检测到莱姆疏螺旋体螺旋体。加氏疏螺旋体是 PCR 阳性样本中最常见的物种，包含与人类感染相关的基因型。在地面觅食的鸟类中，受感染蜱虫的感染率是其他鸟类的 5 倍，但这两个群体传播疏螺旋体的能力相同。迁徙的雀形目鸟类寄生着流行病学上重要的媒介蜱和疏螺旋体属物种，并且根据其摄食行为，其作为宿主的有效性也有所不同。
Birds host vector ticks and Borrelia species and vary in effectiveness as reservoirs. To define the role of birds as reservoirs and disseminators of Borrelia spirochetes, we characterized tick infestation and reservoir competence of migratory passerine birds in Sweden. A total of 1,120 immature Ixodes ricinus ticks were removed from 13,260 birds and assayed by quantitative polymerase chain reaction (PCR) for Borrelia, followed by DNA sequencing for species and genotype identification. Distributions of ticks on birds were aggregated, presumably because of varying encounters with ticks along migratory routes. Lyme borreliosis spirochetes were detected in 160 (14%) ticks. Borrelia garinii was the most common species in PCR-positive samples and included genotypes associated with human infections. Infestation prevalence with infected ticks was 5 times greater among ground-foraging birds than other bird species, but the 2 groups were equally competent in transmitting Borrelia. Migratory passerine birds host epidemiologically important vector ticks and Borrelia species and vary in effectiveness as reservoirs on the basis of their feeding behavior.