疟疾传播率的变化与每个取食周期按蚊的存活率无关。

Variations in malaria transmission rates are not related to anopheline survivorship per feeding cycle.

作者信息

Burkot T R, Graves P M, Paru R, Battistutta D, Barnes A, Saul A

机构信息

Papua New Guinea Institute of Medical Research, Madang.

出版信息

Am J Trop Med Hyg. 1990 Oct;43(4):321-7. doi: 10.4269/ajtmh.1990.43.321.

DOI:10.4269/ajtmh.1990.43.321

PMID:2240359

Abstract

Anopheline survivorship, vectorial capacity, and mosquito infection probability estimates from mosquito infection rates were determined 4 times in 1 year in a Papua New Guinea village. Estimates of survivorship over the length of the extrinsic incubation period differed significantly during the year. However, survivorship per feeding cycle, individual mosquito vectorial capacity, and mosquito infection probability did not vary significantly. Estimates of these parameters were then compared to estimates of survivorship, individual vectorial capacity, and mosquito infection probability in mosquito populations in other villages in the study area. Since survivorship per feeding cycle did not vary significantly among the mosquito populations in these villages, changes in malaria transmission potential can be better gauged from estimates of survivorship over the length of the extrinsic incubation period. However, as measurements of relative inoculation rates are easier to perform and have been related to parasite prevalences in children in this area, estimates of inoculation rates are a preferred option for estimating malaria transmission in the Madang area of Papua New Guinea.

摘要

在巴布亚新几内亚的一个村庄，一年内对按蚊的存活率、传播能力以及根据蚊虫感染率估算的蚊虫感染概率进行了4次测定。一年中，外在潜伏期内的存活率估算值差异显著。然而，每个取食周期的存活率、单个蚊虫的传播能力以及蚊虫感染概率并无显著变化。随后，将这些参数的估算值与研究区域内其他村庄蚊虫种群的存活率、单个传播能力以及蚊虫感染概率的估算值进行了比较。由于这些村庄的蚊虫种群中每个取食周期的存活率并无显著差异，因此，根据外在潜伏期内的存活率估算值能够更好地衡量疟疾传播潜力的变化。不过，鉴于相对接种率的测量操作更为简便，且与该地区儿童的寄生虫患病率相关，因此，接种率估算值是估算巴布亚新几内亚马当地区疟疾传播情况的首选方法。