The distribution of common intestinal nematodes along an altitudinal transect in KwaZulu-Natal, South Africa
The distribution of common intestinal nematodes along an altitudinal transect in KwaZulu-Natal, South Africa
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DOI：
10.1080/00034983.1996.11813042
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发表时间：
1996-04-01
影响因子：
--
通讯作者：
Gouws, E
中科院分区：
文献类型：
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作者：
Appleton, CC;Gouws, E
为了研究气候和地形对学龄儿童常见肠道线虫分布的影响，在南非夸祖鲁-纳塔尔的德拉肯斯堡山脉山脚下，沿海拔约50m的沿海样带(ASL)到约1700m的ASL调查了发病率的变化。通过单变量和多元回归分析，这些变化与温度、降雨量和蒸发量的几个排列有关。共有693名7至15岁的小学生接受了SIR的检查；SIR是150公里长的横断面上的社区。鞭虫患病率的变化与温度变量显着相关，而蛔虫和美洲钩虫的患病率与降雨量变量相关。沿样带共恢复了17种寄生虫，但多寄生性与海拔呈负相关。
In order to study the effect of climate and topography on the distribution of common, intestinal nematodes in schoolchildren, changes in prevalence were investigated along an altitudinal transect from approximately 50 m above sea level (asl), near the coast, to approximately 1700 m asl, in the foothills of the Drakensberg Mountains, KwaZulu-Natal, South Africa. These changes were related to several permutations of temperature, rainfall and evaporation, using univariate and multiple regression analyses. A total of 693 primary schoolchildren aged between 7 and 15 years was examined from sir; communities along the 150-km transect. Changes in the prevalence of Trichuris trichiura were significantly correlated with temperature-derived variables whereas those of Ascaris lumbricoides and Necator americanus were correlated with rainfall-derived variables. A total of 17 parasite species was recovered along the transect but polyparasitism was negatively correlated with altitude.