An updated atlas of human helminth infections: the example of East Africa
An updated atlas of human helminth infections: the example of East Africa
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DOI：
10.1186/1476-072x-8-42
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发表时间：
2009-07-09
影响因子：
4.9
通讯作者：
Snow, Robert W.
中科院分区：
文献类型：
--
作者：
Brooker, Simon;Kabatereine, Narcis B.;Snow, Robert W.
背景资料：可靠和更新的蠕虫感染分布图对于将控制策略针对最需要的人群至关重要。虽然在流行国家进行了许多调查，但很少以决策者和公共卫生方案管理人员可以获得的形式提供数据。在撒哈拉以南非洲尤其如此，那里的经验数据很少公开。在试图解决的蠕虫风险的地理信息的缺乏，本文介绍了一个更新的全球地图集的发展，人类蠕虫感染，显示的例子东非。方法：经验，横断面估计自1980年以来进行的感染流行率确定使用电子和手动搜索策略的出版和未出版的来源。对已确定的信息规定了一些纳入标准，这些信息被提取到标准化数据库中。详细记录了调查人口、诊断方法、样本量和感染寄生虫和土传蠕虫的人数。一个唯一的标识符，将每个记录与可移植文件格式的源文件的电子副本联系起来。尝试确定每个记录的地理位置，使用标准化的地理定位程序和收集的数据被纳入一个地理信息系统。结果：在编写本报告时，通过多种搜索策略确定了超过2 748个流行率调查。其中2 612个能够进行地理定位和绘图。超过一半（58%）的调查来自灰色文献或未发表的来源，强调了审查国内来源的重要性。66%的调查是在2000年以后进行的。布隆迪、卢旺达和乌干达有全面的全国数据。相比之下，肯尼亚和坦桑尼亚的信息通常集中在该国的特定地区，人口密度极低和/或环境条件不利于蠕虫传播的地区的记录很少。主要蠕虫species.Conclusion的患病率和地理分布的信息：对于所有五个国家，在当前的地图集收集的信息提供了最可靠的，最新的和全面的数据来源的分布常见的蠕虫感染，以指导控制工作的合理实施。
Background: Reliable and updated maps of helminth (worm) infection distributions are essential to target control strategies to those populations in greatest need. Although many surveys have been conducted in endemic countries, the data are rarely available in a form that is accessible to policy makers and the managers of public health programmes. This is especially true in sub-Saharan Africa, where empirical data are seldom in the public domain. In an attempt to address the paucity of geographical information on helminth risk, this article describes the development of an updated global atlas of human helminth infection, showing the example of East Africa.Methods: Empirical, cross-sectional estimates of infection prevalence conducted since 1980 were identified using electronic and manual search strategies of published and unpublished sources. A number of inclusion criteria were imposed for identified information, which was extracted into a standardized database. Details of survey population, diagnostic methods, sample size and numbers infected with schistosomes and soil-transmitted helminths were recorded. A unique identifier linked each record to an electronic copy of the source document, in portable document format. An attempt was made to identify the geographical location of each record using standardized geolocation procedures and the assembled data were incorporated into a geographical information system.Results: At the time of writing, over 2,748 prevalence surveys were identified through multiple search strategies. Of these, 2,612 were able to be geolocated and mapped. More than half (58%) of included surveys were from grey literature or unpublished sources, underlining the importance of reviewing in-country sources. 66% of all surveys were conducted since 2000. Comprehensive, countrywide data are available for Burundi, Rwanda and Uganda. In contrast, information for Kenya and Tanzania is typically clustered in specific regions of the country, with few records from areas with very low population density and/or environmental conditions which are unfavourable for helminth transmission. Information is presented on the prevalence and geographical distribution for the major helminth species.Conclusion: For all five countries, the information assembled in the current atlas provides the most reliable, up-to-date and comprehensive source of data on the distribution of common helminth infections to guide the rational implementation of control efforts.