Centre for Tropical Diseases (CTD),Sacro Cuore Hospital,Negrar, Verona,Italy.
Instituto de Medicina Tropical Alexander von Humboldt,Universidad Peruana Cayetano Heredia,Lima,Peru.
Epidemiol Infect. 2015 Feb;143(3):452-60. doi: 10.1017/S0950268814001563. Epub 2014 Jul 3.
Strongyloides stercoralis is rarely recognized as a major public health issue, probably because its burden is largely underestimated. We reviewed the literature (both PubMed and 'grey' literature) about the prevalence of strongyloidiasis in Latin America, an area of presumable high endemicity. There were finally 88 papers involved in the analysis, covering the period between 1981 and 2011. Studies were heterogeneous in several aspects, such as the populations screened and the diagnostic methods used. Most of the studies relied on direct coproparasitological examination, which has low sensitivity for the detection of S. stercoralis larvae. The following countries presented areas of high prevalence (>20%): Argentina, Ecuador, Venezuela, Peru and Brazil. Globally, for most of the included countries it was not possible to define reliable data because of paucity and/or inadequacy of studies. S. stercoralis requires specific diagnostic methods for its detection; therefore, surveys should be specifically designed in order to avoid underestimation of the infection.
粪类圆线虫通常不被认为是一个主要的公共卫生问题，这可能是因为其负担在很大程度上被低估了。我们对拉丁美洲（一个假定的高流行地区）粪类圆线虫病的流行情况进行了文献回顾（包括 PubMed 和灰色文献）。最终有 88 篇论文参与了分析，涵盖了 1981 年至 2011 年期间。这些研究在多个方面存在异质性，例如筛查的人群和使用的诊断方法。大多数研究依赖于直接粪便寄生虫学检查，但这种方法对粪类圆线虫幼虫的检测敏感性较低。以下国家的高流行地区（>20%）包括阿根廷、厄瓜多尔、委内瑞拉、秘鲁和巴西。在全球范围内，对于大多数纳入的国家来说，由于研究的缺乏和/或不足，无法确定可靠的数据。粪类圆线虫需要特定的诊断方法来检测；因此，调查应该专门设计，以避免低估感染。
