Entomologic inoculation rates of Anopheles arabiensis in southwestern Ethiopia.

Entomologic inoculation rates of Anopheles arabiensis in southwestern Ethiopia.
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DOI:
10.4269/ajtmh.12-0745
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发表时间:
2013-09
期刊:
The American journal of tropical medicine and hygiene
影响因子:
--
通讯作者:
Lindtjørn B
Lindtjørn B
中科院分区:
其他
文献类型:
--
作者:
Massebo F;Balkew M;Gebre-Michael T;Lindtjørn B

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我们收集按蚊每隔一周从埃塞俄比亚西南部的随机选择的房子,使用疾病控制中心(CDC)的光陷阱,除虫菊喷雾捕捉,人工坑住房建设检测环子孢子蛋白和估计昆虫接种率(EIR)的一年。在3,678只阿拉伯按蚊环子孢子蛋白检测中,11只为恶性疟原虫阳性,3只为间日疟原虫阳性。恶性疟原虫的年EIR估计。根据CDC灯诱法,阿拉伯按蚊每年每人感染性叮咬17.1次(95%置信区间= 7.03-34.6),根据除虫菊喷雾捕获量,每年每人感染性叮咬0.1次。来自CDC光诱的恶性疟原虫EIR从每人每年0次感染性叮咬(在60%的房屋中)到最接近繁殖地点的房屋中每人每年73.2次感染性叮咬不等。在潮湿的月份,接触传染性叮咬的风险高于干燥的月份,4月份达到高峰(每人每月9.6次传染性叮咬),这是蚊子密度最高的时期。
We collected anophelines every second week for one year from randomly selected houses in southwestern Ethiopia by using Centers for Disease Control (CDC) light traps, pyrethrum spray catches, and artificial pit shelter constructions to detect circumsporozoite proteins and estimate entomologic inoculation rates (EIRs). Of 3,678 Anopheles arabiensis tested for circumsporozoite proteins, 11 were positive for Plasmodium falciparum and three for P. vivax. The estimated annual P. falciparum EIR of An. arabiensis was 17.1 infectious bites per person per year (95% confidence interval = 7.03–34.6) based on CDC light traps and 0.1 infectious bites per person per year based on pyrethrum spray catches. The P. falciparum EIRs from CDC light traps varied from 0 infectious bites per person per year (in 60% of houses) to 73.2 infectious bites per person per year in the house nearest the breeding sites. Risk of exposure to infectious bites was higher in wet months than dry months, with a peak in April (9.6 infectious bites per person per month), the period of highest mosquito density.
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