| 欧汉标,沈荣煊,麦海,戴广祥,张曼青,杨华源,李玉莲,曾敏,余向明.伍氏病蚤雷州亚种传播鼠疫媒介能力的研究[J].中华流行病学杂志,2003,24(6):487-490 |
| 伍氏病蚤雷州亚种传播鼠疫媒介能力的研究 |
| Study on vector ability of Nosopsyllus wualis leizhouensis in the transmission of plague |
| 收稿日期:2002-08-20 出版日期:2014-09-18 |
| DOI： |
| 中文关键词: 伍氏病蚤雷州亚种 鼠疫 媒介 效能 |
| 英文关键词: Nosopsyllus wualis leizhouensis Plague Vector Efficiency |
| 基金项目:广东省医学科研基金立项课题(A1997500) |
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| 中文摘要: |
| 目的查明伍氏病蚤雷州亚种传播鼠疫的能力,评价其媒介作用和地位。方法在温度19℃±1℃、湿度85%±5%条件下,根据动物间鼠疫传播的原理,分别进行了蚤的感染、集群传播、单蚤单鼠传播、单蚤传播、菌栓形成和带菌蚤生存期限等试验。结果蚤染疫率94.64%,集群传疫率100%,单蚤单鼠传疫率30%,单蚤传播共传黄毛鼠388只,传播成功9只,传播潜能0.360,媒介效能0.257,栓塞存活潜能0.868,媒介指数0.223,吸血的染疫蚤平均存活时间17.58天(1～58天),饥饿的染疫蚤平均存活时间7.25天(1～16天),菌栓蚤平均存活时间7.64天(1～16天),菌栓形成时间8.80天(2～16天),菌栓形成率78.12%。结论伍氏病蚤有传播鼠疫的能力,可在鼠蚤鼠模式中起媒介作用。 |
| 英文摘要: |
| Objective To find out the vector ability and function of Nosopsyllus wualis leizhouensis in the transmitting plague.Methods In T:19℃±1℃,RH:85%±5%, data regarding the vector ability as cluster spreading, single flea spreading, single flea transmitting plague to single animal, formative bacterial embolus and infection fleas life-span through experiments was gathered.Results The rate of infection on fleas was 94.64%, with 100% transmission rate of colony to spread, and 30% from single flea spreading to single animal. In the experiment of single flea transmission, all of the 388 rattus loseas were bitten by the fleas with bacterial, but only 9 animals were characteristically infected with the transmission potential, vector efficiency, survival potential of embolus, vector index as 0.360, 0.257, 0.868 and 0.223 respectively. The mean survive days of infected flea feed with blood were 17.58(1-58), and the mean survive days of hunger infected flea were 7.25(1-16). Formative bacterial embolus days were 8.80(2-16) and the rate of embolus flea was 78.12%. Conclusions Nosopsyllus wualis leizhouensis could serve as vector and important in the mode of plague transmittion. |
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