在西尼罗河病毒活跃期对科罗拉多州前缘地区进行的昆虫学研究。

Entomological studies along the Colorado Front Range during a period of intense West Nile virus activity.

作者信息

Bolling B G, Moore C G, Anderson S L, Blair C D, Beaty B J

机构信息

Arthropod-borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO 80523-1692, USA.

出版信息

J Am Mosq Control Assoc. 2007 Mar;23(1):37-46. doi: 10.2987/8756-971X(2007)23[37:ESATCF]2.0.CO;2.

DOI:10.2987/8756-971X(2007)23[37:ESATCF]2.0.CO;2

PMID:17536366

Abstract

To better understand the ecology of West Nile virus transmission in Northern Colorado, field studies were conducted in Larimer and Weld counties from September 2003 through March 2005. During summer studies, 18,540 adult mosquitoes were collected using light traps and gravid traps. West Nile virus RNA was detected in 24 of the 2,140 mosquito pools tested throughout the study area in 2003 and 2004. Culex tarsalis had the highest minimum infection rate (MIR) in both 2003 (MIR = 34.48) and in 2004 (MIR = 8.74). During winter studies, 9,391 adult mosquitoes were collected by aspirator from various overwintering sites including bridges and storm drains. The most frequently collected species was Culex pipiens. West Nile virus was not detected in our overwintering collections. The relationship between spring adult emergence and temperature inside and outside overwintering sites is described. Species composition of collections as well as the spatial and temporal distribution of West Nile virus detections are presented.

摘要

为了更好地了解科罗拉多州北部西尼罗河病毒的传播生态，于2003年9月至2005年3月在拉里默尔县和韦尔德县开展了实地研究。在夏季研究期间，使用诱蚊灯和孕蚊诱捕器收集了18540只成年蚊子。在2003年和2004年整个研究区域内检测的2140组蚊虫样本中，有24组检测到西尼罗河病毒RNA。2003年（最低感染率=34.48）和2004年（最低感染率=8.74），尖音库蚊的最低感染率最高。在冬季研究期间，通过吸气器从包括桥梁和雨水排放口在内的各种越冬地点收集了9391只成年蚊子。最常收集到的物种是致倦库蚊。在我们的越冬样本中未检测到西尼罗河病毒。描述了春季成虫羽化与越冬地点内外温度之间的关系。介绍了收集样本的物种组成以及西尼罗河病毒检测的时空分布情况。