The entomological inoculation rate and Plasmodium falciparum infection in African children.

The entomological inoculation rate and Plasmodium falciparum infection in African children.
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非洲儿童的昆虫接种率和恶性疟原虫感染。

DOI:
10.1038/nature04024
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发表时间:
2005-11-24
期刊:
影响因子:
64.8
通讯作者:
Hay, SI
Hay, SI
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Smith, DL;Dushoff, J;Snow, RW;Hay, SI

文献摘要

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疟疾是全球发病率和死亡率的一个重要原因。有些人比其他人更经常被咬伤,这一事实对危险因素与病媒传播疾病流行率之间的关系有很大影响。在这里,我们开发了一个数学框架,使我们能够估计感染率的异质性之间的关系,传染性叮咬率和社区流行。我们将这一框架应用于一个大型的、已发布的数据集,该数据集结合了来自90多个社区的疟疾测量结果。我们发现强有力的证据表明,异质性叮咬或异质性感染易感性是决定感染流行率的重要和普遍因素:20%的人感染了80%的感染。我们还发现,每个感染性叮咬的个体感染平均持续约六个月,而清除感染的儿童对新的感染也没有免疫力。这些结果对公共卫生干预措施具有重要意义:疟疾控制的成功将在很大程度上取决于工作是否针对那些最有感染风险的人。
Malaria is an important cause of global morbidity and mortality. The fact that some people are bitten more often than others has a large effect on the relationship between risk factors and prevalence of vector-borne diseases. Here we develop a mathematical framework that allows us to estimate the heterogeneity of infection rates from the relationship between rates of infectious bites and community prevalence. We apply this framework to a large, published data set that combines malaria measurements from more than 90 communities. We find strong evidence that heterogeneous biting or heterogeneous susceptibility to infection are important and pervasive factors determining the prevalence of infection: 20% of people receive 80% of all infections. We also find that individual infections last about six months on average, per infectious bite, and children who clear infections are not immune to new infections. The results have important implications for public health interventions: the success of malaria control will depend heavily on whether efforts are targeted at those who are most at risk of infection.
DOI: 10.4269/ajtmh.2004.70.625
发表时间: 2004-06-01
影响因子: 3.3
作者:
Sama, W;Killeen, G;Smith, T
通讯作者: Smith, T
疟疾风险的全球分布和人口:过去,现在和未来。
DOI: 10.1016/s1473-3099(04)01043-6
发表时间: 2004-06
影响因子: 56.3
作者:
Hay, SI;Guerra, CA;Tatem, AJ;Noor, AM;Snow, RW
通讯作者: Snow, RW
DOI: 10.1371/journal.pbio.0020368
发表时间: 2004-11
期刊: PLoS biology
影响因子: 9.8
作者:
Smith DL;Dushoff J;McKenzie FE
通讯作者: McKenzie FE
DOI: 10.1016/0035-9203(86)90199-9
发表时间: 1986-01-01
影响因子: 2.2
作者:
DYE, C;HASIBEDER, G
通讯作者: HASIBEDER, G
DOI: 10.4269/ajtmh.1999.61.109
发表时间: 1999-07-01
影响因子: 3.3
作者:
Beier, JC;Killeen, GF;Githure, JI
通讯作者: Githure, JI