| 黄炯烈,何桂铭.实验研究中华按蚊对马来丝虫微丝蚴吸入率及宿主效率[J].Chinese journal of Epidemiology,1989,10(6):344-347 |
| 实验研究中华按蚊对马来丝虫微丝蚴吸入率及宿主效率 |
| Observation on the Intake of Brugia malayi Microfilariae by Anopheles sinensis and Host Efficiency |
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| DOI： |
| KeyWord: 丝虫病 马来丝虫 中华按蚊 |
| English Key Word: Filariasis Brugia malayi Anopheles sinensis |
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| Abstract: |
| 本实验以长爪沙鼠腹腔中的人体马来丝虫微丝蚴为实验病原,通过人工膜吸血装置,感染中华按蚊,观察媒蚊的微丝蚴吸入率及宿主效率。结果表明,中华按蚊对马来丝虫的微丝蚴吸入率均小于1,即实际吸入的微丝蚴数(观察值)小于估计将吸入的微丝蚴数(估计值),其相关方程为Y=0.61X-1.37;而中华按蚊对马来丝虫的宿主效率(以实验感染指数为指标)则随吸入微丝蚴数的上升而下降,这种变化过程与感染蚊存活率的变化情况相互平行,作者认为感染蚊存活率下降是宿主效率IEI值下降的主要原因。 |
| English Abstract: |
| The experiments were carried out under the controlled conditions with temperature at 26±1℃and relative humidity 75-85%.The Brugian microfilariae from the peritoneal cavity of Mongolian jirds, mixed with rabbit blood, were ingested by Anopheles mosquitoes through the artificial membrane.The experimental data show that the number of microfilariae ingested is fewer than would be expected from the microfilarial densities in the blood meal. The linear regression shows their quantitative relation: Y=0.61X-1.37.At the same time the host efficiency of Anopheles sinensis decreases with the increase of microfilarial number ingested. In case of the relationship between Brugia malayi and Anopheles sinensis, the survival rate of vector host is the chief factor influencing the decrease of host efficiency. |
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