Mitchell C J, Haramis L D, Karabatsos N, Smith G C, Starwalt V J
Division of Vector-Borne Infectious Diseases, Centers for Control and Prevention, Public Health Service, Fort Collins, CO 80522, USA.
J Med Entomol. 1998 Jul;35(4):573-7. doi: 10.1093/jmedent/35.4.573.
Prospective studies were conducted at used-tire sites in Illinois during 1994-1995 in an effort to isolate arboviruses from mosquitoes, particularly Aedes albopictus (Skuse) and Aedes triseriatus (Say). Three isolates of Potosi virus were obtained from Ae. albopictus collected at a waste tire site in Jasper County during 1994 and 1995. Also, a single isolate of Cache Valley virus was obtained from Ae. albopictus collected at the Jasper County site during 1995. These are the first records of arbovirus isolations from Ae. albopictus in Illinois and the first isolate of Cache Valley virus from this mosquito species. During 1994, two isolates of La Crosse virus were made from Ae. triseriatus collected at a used-tire site in Peoria County in proximity to the residence of a human La Crosse encephalitis case. This is the first evidence in Illinois that indicates increased risk to humans living near used-tire sites, which may serve as foci for production of Ae. triseriatus, the vector of La Crosse virus. Tire removal and improved environmental sanitation at such sites may greatly reduce the abundance of vector mosquitoes, and, therefore, the risk of arbovirus transmission.
1994年至1995年期间，在伊利诺伊州的废旧轮胎堆放点开展了前瞻性研究，旨在从蚊子，尤其是白纹伊蚊（Skuse）和三带喙库蚊（Say）中分离虫媒病毒。1994年和1995年期间，在贾斯珀县的一个废旧轮胎堆放点采集的白纹伊蚊中获得了3株波托西病毒分离株。此外，1995年在贾斯珀县采集的白纹伊蚊中获得了1株卡奇谷病毒分离株。这些是伊利诺伊州从白纹伊蚊中分离到虫媒病毒的首次记录，也是从该蚊种中首次分离到卡奇谷病毒。1994年，在皮奥里亚县一个废旧轮胎堆放点采集的三带喙库蚊中分离到2株拉克罗斯病毒，该堆放点靠近一名患拉克罗斯脑炎的人类病例的住所。这是伊利诺伊州的首个证据，表明居住在废旧轮胎堆放点附近的人类面临的风险增加，废旧轮胎堆放点可能是三带喙库蚊（拉克罗斯病毒的传播媒介）繁殖的疫源地。清除此类地点的轮胎并改善环境卫生，可能会大大减少媒介蚊子的数量，从而降低虫媒病毒传播的风险。
