1987年和1991年科罗拉多州北部的虫媒病毒监测

Arbovirus surveillance in northern Colorado, 1987 and 1991.

作者信息

Smith G C, Moore C G, Davis T, Savage H M, Thapa A B, Shrestha S L, Karabatsos N

机构信息

Medical Entomology-Ecology Branch, Centers For Disease Control, Fort Collins, CO 80522.

出版信息

J Med Entomol. 1993 Jan;30(1):257-61. doi: 10.1093/jmedent/30.1.257.

DOI:10.1093/jmedent/30.1.257

PMID:8433334

Abstract

Arbovirus surveillance was conducted during an epizootic of western equine encephalitis (WEE) during 1987 and during a nonepizootic year, 1991, in the same area in northern Colorado. Mosquitoes were collected in Larimer County, CO, during weeks 33-37 (10 August to 7 September) in 1987 and during weeks 26-35 (24 June to 26 August) in 1991. In total, 13,099 mosquitoes in 694 pools collected during 1987 and 8,672 mosquitoes in 242 pools collected during 1991 were tested for virus. WEE virus was isolated in both years from Culex tarsalis Coquillett and from Cx. pipiens L. in 1987. Infection rates and population levels of Cx. tarsalis were not significantly different in the 2 yr during weeks 33, 34, and 35 (12-26 August). St. Louis encephalitis virus was isolated in 1987 from Cx. tarsalis. Other viruses isolated included Hart Park, Turlock, and Jerry Slough, a variety of Jamestown Canyon virus.

摘要

1987年在科罗拉多州北部同一地区发生西部马脑炎（WEE）动物流行病期间以及1991年非动物流行病年份开展了虫媒病毒监测。1987年第33 - 37周（8月10日至9月7日）以及1991年第26 - 35周（6月24日至8月26日）在科罗拉多州拉里默县采集蚊子。总共对1987年采集的694池13099只蚊子以及1991年采集的242池8672只蚊子进行了病毒检测。两年均从环跗库蚊以及1987年从尖音库蚊中分离出WEE病毒。在第33、34和35周（8月12日至26日）的两年间，环跗库蚊的感染率和种群数量没有显著差异。1987年从环跗库蚊中分离出圣路易斯脑炎病毒。分离出的其他病毒包括哈特帕克病毒、特洛克病毒和杰里·斯劳病毒，以及多种詹姆斯敦峡谷病毒。