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首页> 外文期刊>Parasitology >Modelling the distribution in Hawaii of Angiostrongylus cantonensis (rat lungworm) in its gastropod hosts
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Modelling the distribution in Hawaii of Angiostrongylus cantonensis (rat lungworm) in its gastropod hosts

机译：在Angiostrongylus（大鼠肺虫）夏威夷的分布在其胃肠杆宿主中建模

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摘要

Angiostrongylus cantonensis (rat lungworm), a parasitic nematode, is expanding its distribution. Human infection, known as angiostrongyliasis, may manifest as eosinophilic meningitis, an emerging infectious disease. The range and incidence of this disease are expanding throughout the tropics and subtropics. Recently, the Hawaiian Islands have experienced an increase in reported cases. This study addresses factors affecting the parasite's distribution and projects its potential future distribution, using Hawaii as a model for its global expansion. Specimens of 37 snail species from the Hawaiian Islands were screened for the parasite using PCR. It was present on five of the six largest islands. The data were used to generate habitat suitability models for A. cantonensis, based on temperature and precipitation, to predict its potential further spread within the archipelago. The best current climate model predicted suitable habitat on all islands, with greater suitability in regions with higher precipitation and temperatures. Projections under climate change (to 2100) indicated increased suitability in regions with estimated increased precipitation and temperatures, suitable habitat occurring increasingly at higher elevations. Analogously, climate change could facilitate the spread of A. cantonensis from its current tropical/subtropical range into more temperate regions of the world, as is beginning to be seen in the continental USA.
机译：Angiostrongylus Cantonensis（大鼠肺虫），寄生线虫，正在扩大其分布。人类感染，称为高血糖，可能表现为嗜酸性脑膜炎，是一种新兴的传染病。这种疾病的范围和发病率在整个热带地带和亚波质中都在扩张。最近，夏威夷群岛经历了报告案件的增加。本研究解决了影响寄生虫分配的因素，并使用夏威夷作为全球扩张的典范。使用PCR筛选来自夏威夷岛的37种蜗牛种类的标本。使用PCR筛选寄生虫。它存在于六个最大的岛屿中的五个。这些数据用于为A. Cantonensis基于温度和降水来产生栖息地适用性模型，以预测其在群岛内进一步扩散的潜力。最佳当前的气候模型在所有岛屿上预测合适的栖息地，在沉淀和温度较高的地区具有更大的适用性。气候变化下的预测（至2100）表示，在估计降水和温度上升的地区的适用性增加，适当的栖息地越来越升高。类似地，气候变化可以促进A.-----目前的热带/亚热带的传播进入世界上更多的温带地区，正如在美国大陆的那样开始。

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