2005 - 2017年美国加利福尼亚州蜂鸟体内的西尼罗河病毒

West Nile Virus in Hummingbirds in California, USA, 2005-17.

作者信息

Backus Laura, Foss Leslie, Tell Lisa A

机构信息

School of Veterinary Medicine, Department of Medicine and Epidemiology, University of California, One Shields Avenue, Davis, California 95616, USA.

California Department of Public Health, Vector-Borne Disease Section, 850 Marina Parkway, Richmond, California 94804, USA.

出版信息

J Wildl Dis. 2019 Oct;55(4):903-907. Epub 2019 Apr 5.

PMID:30951397

Abstract

Although West Nile virus (WNV) infects many avian species, the prevalence and impact of WNV in hummingbirds (Family Trochilidae) have not been described. We focused on hummingbird mortality and WNV infection using data from the state of California's Dead Bird Surveillance Program for the years 2005-17. The overall prevalence of WNV in tested carcasses was 10.1% (49/486), with annual prevalence ranging from 0-28%. Prevalence by county ranged from 0-40% while prevalence by species ranged from 0-12%. We demonstrated that hummingbirds were naturally infected with WNV and displayed temporal and spatial patterns of infection consistent with trends observed in other avian species.

摘要

尽管西尼罗河病毒（WNV）可感染多种鸟类，但尚未有关于WNV在蜂鸟（蜂鸟科）中的流行情况及影响的描述。我们利用加利福尼亚州2005 - 2017年死鸟监测项目的数据，重点研究了蜂鸟的死亡率和WNV感染情况。经检测的尸体中WNV的总体患病率为10.1%（49/486），年患病率在0%至28%之间。各县的患病率在0%至40%之间，各物种的患病率在0%至12%之间。我们证明了蜂鸟自然感染了WNV，并呈现出与其他鸟类物种中观察到的趋势一致的感染时间和空间模式。