Turell M J
Virology Division, U.S. Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD 21702-5011, USA.
J Med Entomol. 1998 Sep;35(5):670-3. doi: 10.1093/jmedent/35.5.670.
The effect of salt concentration in larval rearing water on the susceptibility of adult Aedes taeniorhynchus (Wiedemann) and Aedes sollicitans (Skuse) to infection with eastern equine encephalomyelitis (EEE) virus was tested in the laboratory. Ae. sollicitans was more susceptible to infection (79%, n = 82) and viral dissemination (16%) with EEE virus than was Ae. taeniorhynchus (42%, n = 184) and (5%), respectively, when fed on a chick with a viremia of 10(7) +/- 0.1 plaque-forming units/ml; however, infection rates in adults were not affected by rearing in salt concentrations ranging from fresh water to brackish water containing 2.4% sea salts (1 part fresh water and 2 parts seawater). When fed on the same viremic 6-d-old chicken, all 48 Aedes albopictus (Skuse), reared in fresh water, became infected. Similarly, Venezuelan equine encephalitis viral infection or dissemination rates did not vary among Ae. taeniorhynchus adults that were reared in water containing 0, 1, or 2% sea salts.
在实验室中测试了幼虫饲养水中盐浓度对成年带喙伊蚊（Wiedemann）和骚扰伊蚊（Skuse）感染东部马脑炎（EEE）病毒易感性的影响。当以病毒血症为10⁷±0.1噬斑形成单位/毫升的雏鸡为食时，骚扰伊蚊比带喙伊蚊更容易感染EEE病毒（分别为79%，n = 82和42%，n = 184）和病毒传播（分别为16%和5%）；然而，在从淡水到含2.4%海盐的微咸水（1份淡水和2份海水）的盐浓度中饲养的成虫，其感染率不受影响。当以同一患病毒血症的6日龄雏鸡为食时, 在淡水中饲养的48只白纹伊蚊（Skuse）全部被感染。同样，在含0%、1%或2%海盐的水中饲养的带喙伊蚊成虫，委内瑞拉马脑炎病毒感染率或传播率没有差异。
