Zhang H L
Yunnan Provincial Institute for Control and Research of Epidemic Diseases, Dali.
Zhonghua Yu Fang Yi Xue Za Zhi. 1990 Sep;24(5):265-7.
In July-September 1983-1987, 57,898 adult female mosquitoes belonging to 29 species of 8 genera were collected from Japanese B encephalitis (JE) epidemic areas in Yunnan, China, and were examined by C 6/36 cell method and sucking mouse method. Twenty-eight strains of JE virus were isolated from Culex tritaeniorhychus, C. whitomorei, C. pseudovishnui, C. fuscocephala, C. annulus, C. gelidus, Anopheles sinensis, Mansonia uniformis, Aedes albopictus, Ae. Vexans, Ae. lineatopennis, and Ae. assamensis. The positive isolation rates by the two methods were 6.19% and 3.33% respectively. The highest positive isolation rate 12.3% (per 100 pools), moiquito body virus carrier rate 1:208 or moiquito body virus carrier rate 4.81% (per 1000 mosquitoes) were found in the middle ten days of August, corresponding to epidemic peak of JBE Nine strains of JE virus were isolated from C tritaeniorhychus with an isolation rate of 7.44%, natural isolation ratio was 1.584 and mosquito body virus carrier rate 1.71%. These results indicated that C. tritaeniorhynchus might be the main vector of JE virus in Yunnan, while C. whitmorei, C. pseudovishnui and An. sinensis are also important vectors of JE virus in Yunnan.
1983年7月至1987年9月，从中国云南的日本乙型脑炎（乙脑）流行区采集了属于8个属29种的57,898只成年雌性蚊子，并用C6/36细胞法和吸鼠法进行检测。从三带喙库蚊、白纹库蚊、伪杂鳞库蚊、棕头库蚊、环带库蚊、洁库蚊、中华按蚊、常型曼蚊、白纹伊蚊、刺扰伊蚊、线纹伊蚊和阿萨姆伊蚊中分离出28株乙脑病毒。两种方法的阳性分离率分别为6.19%和3.33%。8月中旬发现最高阳性分离率为12.3%（每100池）、蚊体病毒携带率为1:208或蚊体病毒携带率为4.81%（每1000只蚊子），与乙脑流行高峰相对应。从三带喙库蚊中分离出9株乙脑病毒，分离率为7.44%，自然分离比为1.584，蚊体病毒携带率为1.71%。这些结果表明，三带喙库蚊可能是云南乙脑病毒的主要传播媒介，而白纹库蚊、伪杂鳞库蚊和中华按蚊也是云南乙脑病毒的重要传播媒介。
