来自南亚和远东地区的三带喙库蚊定殖种群对西尼罗河病毒的媒介能力比较。

Comparison of vector competence for West Nile virus of colonized populations of Culex tritaeniorhynchus from southern Asia and the Far East.

作者信息

Ahmed T, Hayes C G, Baqar S

出版信息

Southeast Asian J Trop Med Public Health. 1979 Dec;10(4):498-504.

Abstract

Seven colonized stocks of Cx. tritaeniorhynchus from different geographic areas of Southern Asia and the Far East were assayed for susceptibility to WN virus infection by membrane feeding and by intrathoracic inoculation. Infected females also were tested for their ability to transmit virus to baby mice. No geographic pattern of differential susceptibility to WN virus infection was apparent from the experiments; however, the per os ID50 of one strain from Khulna, Bangladesh was over 10-fold greater than the ID50's of stocks from Karachi, Pakistan and Sendai, Japan. No difference in susceptibility was found by parenteral inoculation of virus. Likewise, greater than or equal to 90% of infected females from all the colonies were able to transmit virus.

摘要

通过膜饲法和胸腔接种法，对来自南亚和远东不同地理区域的7株三带喙库蚊定殖种群进行了西尼罗病毒感染易感性检测。还检测了受感染雌蚊将病毒传播给幼鼠的能力。从实验中未发现对西尼罗病毒感染的易感性存在地理差异模式；然而，来自孟加拉国库尔纳的一个品系的经口半数感染剂量（ID50）比来自巴基斯坦卡拉奇和日本仙台的种群的ID50高10倍以上。通过病毒的肠胃外接种未发现易感性有差异。同样，所有菌落中90%及以上的受感染雌蚊都能够传播病毒。