Gangoso Laura, Grande Juan Manuel, Llorente Francisco, Jiménez-Clavero Miguel Ángel, Pérez Jesús M, Figuerola Jordi
Department of Ecology and Evolution, University of Lausanne CH-1015, Lausanne, Switzerland.
J Wildl Dis. 2010 Oct;46(4):1321-4. doi: 10.7589/0090-3558-46.4.1321.
Birds are the major amplifying host for West Nile virus (WNV), a flavivirus that may affect humans and transmitted by bloodsucking vectors. Eleonora's Falcons (Falco eleonorae) migrate to the Canary Islands annually from WNV-endemic regions. To investigate the possible role of Eleonora's Falcons in the circulation of WNV, we measured WNV-specific antibodies in 81 falcons captured in 2006. None of the nestlings but 14.8% of the adults had WNV-neutralizing antibodies. RT-PCR did not detect flaviviruses in nonculicine ectoparasites (n=231) of the falcons. These findings suggest that WNV infection did not occur locally, but rather on the wintering grounds or during migration.
鸟类是西尼罗河病毒（WNV）的主要扩增宿主，西尼罗河病毒是一种黄病毒，可感染人类并通过吸血媒介传播。埃莉诺游隼（Falco eleonorae）每年从西尼罗河病毒流行地区迁徙到加那利群岛。为了调查埃莉诺游隼在西尼罗河病毒传播中可能扮演的角色，我们检测了2006年捕获的81只游隼体内的西尼罗河病毒特异性抗体。雏鸟中未检测到抗体，但成年游隼中有14.8%具有西尼罗河病毒中和抗体。逆转录聚合酶链反应（RT-PCR）未在游隼的非蚊类体外寄生虫（n = 231）中检测到黄病毒。这些发现表明，西尼罗河病毒感染并非在当地发生，而是在越冬地或迁徙过程中发生的。
