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| 湖北嗜人按蚊传播疟疾的阈值研究 | |
| 引用本文： | 夏志贵,汤林华,顾政诚,黄光全,郑香,王漪,黄希平. 湖北嗜人按蚊传播疟疾的阈值研究[J]. 中国寄生虫学与寄生虫病杂志, 2003, 21(4): 224-226 |
| 作者姓名： | 夏志贵 汤林华 顾政诚 黄光全 郑香 王漪 黄希平 |
| 作者单位： | 1. 中国疾病预防控制中心寄生虫病预防控制所,世界卫生组织疟疾、血吸虫病和丝虫病合作中心,上海,200025 2. 湖北省疾病预防控制中心,武汉,430079 3. 湖北省随州市疾病预防控制中心,随州,441300 |
| 基金项目： | 卫生部/WHO资助项目(No.CHN/MAL/001) |
| 摘 要： | 目的研究湖北嗜人按蚊传播疟疾的阈值和潜势,为当地疟疾监测、预警与防治提供科学的评价指标。方法选取湖北嗜人按蚊分布区疟疾发病率较高的随州市府河镇严家畈村为调查点,于2001年7～8月现场调查媒介按蚊的叮人率、经产蚊比例、人血指数和吸血趋性,调查人群疟疾发病率、原虫率以及疟疾患者发病至接受治疗的平均间隔期,收集观察期间的平均气温数据。根据基本繁殖率概念计算以媒介按蚊临界叮人率为指标的传播疟疾阈值。结果嗜人按蚊趋吸人血的比例为92.6％(63/68),在人房的构成比为91.5％(97/106),人血指数是中华按蚊的12.5倍(0.50/0.04),媒介能量是中华按蚊的6.5倍(0.9448/0.1449),实际叮人率是其临界叮人率(0.2823)的3.5倍(0.98916/0.2823)。疟疾发病率为0.65％(12/1844),小学生原虫率为0.51％(1/198)。结论湖北省试点嗜人按蚊的实际叮人率需要降低71.5％,当地由嗜人按蚊引起的疟疾传播将被阻断。 |
| 关 键 词： | 传播阈值 嗜人按蚊 疟疾 |
| 文章编号： | 1000-7423(2003)-04-0224-03 |
| 修稿时间： | 2003-03-31 |
Study on the Thresholds of Malaria Transmission by Anopheles anthropophagus in Hubei Province |
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| XIA Zhi-gui,TANG Lin-hua,GU Zheng-cheng,HUANG Guang-quan,ZHENG Xiang,WANG Yi,HUANG Xi-ping. Study on the Thresholds of Malaria Transmission by Anopheles anthropophagus in Hubei Province[J]. Chinese Journal of Parasitology and Parasitic Diseases, 2003, 21(4): 224-226 | |
| Authors: | XIA Zhi-gui TANG Lin-hua GU Zheng-cheng HUANG Guang-quan ZHENG Xiang WANG Yi HUANG Xi-ping |
| Affiliation: | Institute of Parasitic Diseases, Chinese Centre for Disease Control and Prevention, WHO Collaborating Centre for Malaria, Schistosomiasis and Filariasis, Shanghai 200025. |
| Abstract: | Objective To study the thresholds and potential of malaria transmission by Anopheles anthropophagusin Hubei Province and provide indicators for the disease surveillance, early warning, prevention and control in the locality.Methods From July to August 2001, field investigations on vectors and malaria situation were carried out in the village ofYanjiafan, Suizhou City, where the malaria incidence was high. The entomological investigations included the man-bitingrate, the proportion of parous anophelines, the human blood index and the blood preference. The others included malariaincidence and parasite rate in human population, the intervals from episode to treatment of the cases, and collection of dataon the mean temperature in the area. Based on the formula of basic reproductive rate, the critical man-biting rate was esti-mated. Results 92. 6% (63/68) of An. anthropophagus were found to have human blood meals, it occupied 91. 5%(97/106) of the mosquitoes in human dwellings, its human blood index and vectorial capacity were 12. 5 times (0. 50/0. 04) and 6. 5 times (0. 9448/0. 1449) higher than those of An. sinensis. The critical man-biting rate was 0. 2823 and theadjusted man-biting rate was 3. 5 times of its critical man-biting rate (0. 9892/0. 2823). The malaria incidence was 0. 65%(12/1844) and the parasite rate in pupils was 0. 51% (1/198). Conclusion A reduction of the adjusted man-biting rateof An. anthropophagus by 71. 5% is needed for interrupting malaria transmission by this vector in the study area. |
| Keywords: | transmission threshold Anopheles anthropophagus malaria |
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