Infectious offspring: how birds acquire and transmit an avian polyomavirus in the wild.

Infectious offspring: how birds acquire and transmit an avian polyomavirus in the wild.
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DOI:
10.1371/journal.pone.0001276
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发表时间:
2007-12-05
期刊:
影响因子:
3.7
通讯作者:
Canal D
Canal D
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Potti J;Blanco G;Lemus JA;Canal D

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野生脊椎动物种群中的原始病毒获得和随后传播的详细模式几乎不存在。我们发现,雏鸟的鸣禽获得多瘤病毒感染的幼虫丽蝇,常见的巢腔筑巢鸟类的体外寄生虫,而繁殖成人获得和更新相同的病毒感染,通过泄殖腔脱落从他们的后代。这些DNA病毒的感染,已知的潜在病原体在某些鸟类物种中产生疾病,因此遵循一个“向上垂直”的环境性质的路线模仿家庭内的水平传播,证明了在成年人和年轻的实验,交叉培养后代的病毒感染模式。这种以前没有描述过的病毒从外寄生虫到后代再到亲本宿主的传播途径可能是许多显示亲本照顾的分类群中病毒传播的常见机制。
Detailed patterns of primary virus acquisition and subsequent dispersal in wild vertebrate populations are virtually absent. We show that nestlings of a songbird acquire polyomavirus infections from larval blowflies, common nest ectoparasites of cavity-nesting birds, while breeding adults acquire and renew the same viral infections via cloacal shedding from their offspring. Infections by these DNA viruses, known potential pathogens producing disease in some bird species, therefore follow an ‘upwards vertical’ route of an environmental nature mimicking horizontal transmission within families, as evidenced by patterns of viral infection in adults and young of experimental, cross-fostered offspring. This previously undescribed route of viral transmission from ectoparasites to offspring to parent hosts may be a common mechanism of virus dispersal in many taxa that display parental care.
DOI: 10.1007/s004420050339
发表时间: 1997-12-01
期刊: OECOLOGIA
影响因子: 2.7
作者:
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