Distribution of Anopheles in Vietnam, with particular attention to malaria vectors of the Anopheles minimus complex
Distribution of Anopheles in Vietnam, with particular attention to malaria vectors of the Anopheles minimus complex
复制标题
DOI：
10.1186/1475-2875-7-11
复制
发表时间：
2008-01-11
期刊：
影响因子：
3
通讯作者：
Manguin, Sylvie
中科院分区：
文献类型：
--
作者：
Garros, Claire;Nguyen, Cam Van;Manguin, Sylvie
背景资料：调查了越南按蚊的分布情况，特别关注微小按蚊复合体（Cellia：Myzomyia）的两个兄弟种，微小按蚊（Anophelesminimus）和哈氏按蚊（Anophelesharrisoni）分别为前种A和前种C。由于这两个兄弟物种的形态鉴定是困难的，可能会导致错误的鉴定，准确的数据，他们各自的分布是失踪。这是根本的重要性，因为这两个物种似乎表现出不同的媒介能力疟疾transmission.Methods：大型昆虫学调查的基础上，牛收集和分子鉴定的一个。极小值结果：根据前人的分子生物学工作和我们的研究资料，对越南北方、中部和东南部23个采样点的按蚊种的分布和按蚊的相对密度进行了研究。minimus和An.哈里索尼的地图。值得注意的是，在每个研究地点都有很高的特定生物多样性。微小按蚊北方以中华按蚊为主，中部以乌头按蚊和迷走按蚊为主。安的南部边界。harrisoni增加到北纬11度。这两个同胞物种之间的同域性已扩展到新的provinces.Conclusion：疟疾传播仍然是高的越南中部和沿着接壤的国家。因此，了解和绘制越南主要和次要疟疾病媒的精确分布图对于实施有效的病媒控制方案至关重要。此外，这些地图应定期更新，并与疾病流行病学相关的环境特征以及东南亚发生的环境和气候变化联系起来。
Background: The distribution of anopheline mosquitoes in Vietnam was examined, with a particular interest for the two sibling species of the Anopheles minimus complex ( Cellia: Myzomyia), An. minimus and Anopheles harrisoni, respectively former species A and C. Because the morphological identification of both sibling species is difficult and may lead to misidentifications, accurate data on their respective distribution are missing. This is of fundamental importance since the two species seem to exhibit differential vectorial capacities for malaria transmission.Methods: Large entomological surveys based on cattle collections and molecular identifications of An. minimus s.l. were carried out in 23 sites throughout northern, central and south-eastern regions of Vietnam.Results: Based on previous molecular works and our data, the distribution of anopheline species and the relative densities of An. minimus and An. harrisoni were mapped. It is noteworthy that there was a high specific biodiversity at each study site. Anopheles minimus s.l. and Anopheles sinensis were the main anopheline species in the northern region, whereas Anopheles aconitus and Anopheles vagus were the most frequent ones in the central region. The southern limit of An. harrisoni was increased to the latitude of 11 degrees N. Sympatry between both sibling species has been extended to new provinces.Conclusion: Malaria transmission is still high in central Vietnam and along bordering countries. Therefore, it is important to know and map the precise distribution of the main and secondary malaria vectors in Vietnam for applying efficient vector control programmes. Moreover, these maps should be regularly updated and linked to environmental characteristics relative to disease epidemiology, and environmental and climatic changes occurring in southeast Asia.