MEASUREMENT OF MALARIAL INFECTIVITY OF HUMAN-POPULATIONS TO MOSQUITOS IN THE MADANG AREA, PAPUA-NEW-GUINEA
MEASUREMENT OF MALARIAL INFECTIVITY OF HUMAN-POPULATIONS TO MOSQUITOS IN THE MADANG AREA, PAPUA-NEW-GUINEA
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DOI：
10.1017/s003118200005825x
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发表时间：
1988-04-01
期刊：
影响因子：
2.4
通讯作者：
ALPERS, MP
中科院分区：
文献类型：
--
作者：
GRAVES, PM;BURKOT, TR;ALPERS, MP
通过两种方法估算了巴布亚新几内亚马当地区人类摄入的可传染蚊子的血粉比例。第一个实验中，实验室饲养的法劳按按蚊以村庄调查中各个年龄段的个体为食。结果显示，3.8%的人具有传染性，通过喂食这些人而被感染的蚊子的平均百分比为37.9%。从受感染蚊子的平均比例来看，以人类为食的蚊子感染的概率为 0.013 .+-。 0.005。在第二种方法中，蚊子以已识别的恶性疟原虫、间日疟原虫和三日疟原虫配子体携带者为食。结果表明，46%的配子体携带者具有传染性，蚊子在取食配子体携带者后被感染的平均概率为0.151±。 0.029。在三个村庄的 18 个月内测量的所有年龄段的配子体患病率平均为 3.3% 恶性疟、4.0% 间日疟和 0.7% 三日疟，总计 8.0 .+-。 0.7%。将配子体流行率与蚊子被配子体携带者感染的概率相结合，蚊子在人类成员吸血后被感染的概率估计为 0.012.+-。 0.003。
The proportion of blood meals taken on humans which are infectious to mosquitoes in the Madang area, Papua New Guinea was estimated by two methods. In the first, laboratory reared Anopheles farauti were fed on individuals of all ages at village surveys. The results showed that 3.8% of people were infectious and that the mean percentage of mosquitoes which became infected by feeding on these people was 37.9%. From the average proportion of mosquitoes infected, the probability that a mosquito feeding on a human would pick up infection was 0.013 .+-. 0.005. In the second approach mosquitoes were fed on identified Plasmodium falciparum, P. vivax and P. malariae gametocyte carriers. The results indicated that 46% of gametocyte carriers were infectious and that the mean probability of a mosquito becoming infected after feeding on a gametocyte carrier was 0.151 .+-. 0.029. Gametocyte prevalence rates in all ages measured over 18 months in three villages averaged 3.3% P. falciparum, 4.0% P. vivax and 0.7% P. malariae, totalling 8.0 .+-. 0.7%. Combining gametocyte prevalence rates with the probability of a mosquito becoming infected from a gametocyte carrier, the probability of a mosquito becoming infected following a blood meal on a member of the human population was estimated to be 0.012 .+-. 0.003.