Komar N, Panella N A, Burns J E, Dusza S W, Mascarenhas T M, Talbot T O
Centers for Disease Control and Prevention, PO Box 2087, Fort Collins, CO 80522, USA.
Emerg Infect Dis. 2001 Jul-Aug;7(4):621-5. doi: 10.3201/eid0704.010403.
As part of an investigation of an encephalitis outbreak in New York City, we sampled 430 birds, representing 18 species in four orders, during September 13-23, 1999, in Queens and surrounding counties. Overall, 33% were positive for West Nile (WN) virus-neutralizing antibodies, and 0.5% were positive for St. Louis encephalitis virus-neutralizing antibodies. By county, Queens had the most seropositive birds for WN virus (50%); species with the greatest seropositivity for WN virus (sample sizes were at least six) were Domestic Goose, Domestic Chicken, House Sparrow, Canada Goose, and Rock Dove. One sampled bird, a captive adult Domestic Goose, showed signs of illness; WN virus infection was confirmed. Our results support the concept that chickens and House Sparrows are good arbovirus sentinels. This study also implicates the House Sparrow as an important vertebrate reservoir host.
作为对纽约市脑炎疫情调查的一部分,我们于1999年9月13日至23日在皇后区及周边各县对430只鸟类进行了采样,这些鸟类分属于四个目18个物种。总体而言,33%的鸟类对西尼罗河(WN)病毒中和抗体呈阳性,0.5%的鸟类对圣路易斯脑炎病毒中和抗体呈阳性。按县划分,皇后区的鸟类对WN病毒血清阳性率最高(50%);对WN病毒血清阳性率最高的物种(样本量至少为6只)有家鹅、家鸡、家麻雀、加拿大鹅和岩鸽。一只被采样的圈养成年家鹅出现了患病迹象;WN病毒感染得到确诊。我们的结果支持鸡和家麻雀是良好的虫媒病毒哨兵这一概念。这项研究还表明家麻雀是重要的脊椎动物储存宿主。