New evidence of the effects of agro-ecologic change on malaria transmission
New evidence of the effects of agro-ecologic change on malaria transmission
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DOI：
10.4269/ajtmh.2005.73.676
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发表时间：
2005-10-01
影响因子：
3.3
通讯作者：
Ye-Ebtyo, Y
中科院分区：
文献类型：
--
作者：
Kebede, A;McCann, JC;Ye-Ebtyo, Y
虽然玉米花粉是已知的幼虫按蚊提供营养，玉米农业和疟疾传播之间的流行病学关系从来没有被定义。为了确定埃塞俄比亚疟疾传播的最新变化是否与玉米作为经济作物的传播有关，我们比较了埃塞俄比亚西北部Bure区21个村庄的疟疾传播和玉米种植强度，该地区最近扩大了玉米种植。高玉米种植区的累积发病率是低玉米种植区的9.5倍。卡方拟合优度检验结果显示，疟疾病例在玉米种植强度类别之间的分布并不均匀（χ（2）= 1，578，P < 0.001）。泊松回归表明，玉米种植的强度，控制不同地点之间的海拔差异，与疟疾发病率呈正相关，显着。因此，在布雷，玉米种植密度与人类感染疟疾的风险加剧有关。
Although maize pollen is known to provide nutrition for larval anopheline mosquitoes, the epidemiologic relationship between maize agriculture and malaria transmission has never been defined. To determine whether recent changes in malaria transmission in Ethiopia might be linked to the spread of maize as a commercial crop, we compared malaria transmission and maize cultivation intensity in 21 villages in the Bure District of northwestern Ethiopia where maize cultivation has recently expanded. The cumulative incidence in high maize cultivation areas was 9.5 times higher than in areas with less maize. A chi-square goodness-of-fit test results showed that malaria cases were not distributed evenly among categories of maize cultivation intensity, (chi(2) = 1,578, P < 0.001). A Poisson regression suggested that the intensity of maize cultivation, controlled for differences in elevation between sites, was positively and significantly correlated with malaria incidence. Thus, the intensity of maize cultivation was associated with exacerbated human risk of malaria in Bure.