加利福尼亚州的水禽生态学与禽流感：宿主特征能为我们提供有关病毒出现情况的信息吗？

Waterfowl ecology and avian influenza in California: do host traits inform us about viral occurrence?

作者信息

Hill Nichola J, Takekawa John Y, Cardona Carol J, Ackerman Joshua T, Schultz Annie K, Spragens Kyle A, Boyce Walter M

机构信息

U.S. Geological Survey, Western Ecological Research Center, San Francisco Bay Estuary Field Station, Vallejo, CA 94592, USA.

出版信息

Avian Dis. 2010 Mar;54(1 Suppl):426-32. doi: 10.1637/8912-043009-Reg.1.

DOI:10.1637/8912-043009-Reg.1

PMID:20521673

Abstract

We examined whether host traits influenced the occurrence of avian influenza virus (AIV) in Anatidae (ducks, geese, swans) at wintering sites in California's Central Valley. In total, 3487 individuals were sampled at Sacramento National Wildlife Refuge and Conaway Ranch Duck Club during the hunting season of 2007-08. Of the 19 Anatidae species sampled, prevalence was highest in the northern shoveler (5.09%), followed by the ring-necked duck (2.63%), American wigeon (2.57%), bufflehead (2.50%), greater white-fronted goose (2.44%), and cinnamon teal (1.72%). Among host traits, density of lamellae (filtering plates) of dabbling ducks was significantly associated with AIV prevalence and the number of subtypes shed by the host, suggesting that feeding methods may influence exposure to viral particles.

摘要

我们研究了宿主特征是否会影响加利福尼亚中央谷地越冬地鸭科动物（鸭、鹅、天鹅）中禽流感病毒（AIV）的出现情况。在2007 - 2008年狩猎季节期间，总共在萨克拉门托国家野生动物保护区和科纳韦牧场鸭俱乐部对3487只个体进行了采样。在所采样的19种鸭科动物中，患病率最高的是北方琵嘴鸭（5.09%），其次是环颈鸭（2.63%）、美国绿头鸭（2.57%）、巨头鹊鸭（2.50%）、白额雁（2.44%）和肉桂色鸭（1.72%）。在宿主特征中，涉禽鸭类的栉片（滤食板）密度与AIV患病率以及宿主排出的病毒亚型数量显著相关，这表明取食方式可能会影响对病毒颗粒的接触。