Spread pattern of the first dengue epidemic in the city of Salvador, Brazil.
Spread pattern of the first dengue epidemic in the city of Salvador, Brazil.
复制标题
在巴西萨尔瓦多市传播第一个登革热流行的模式。
DOI：
10.1186/1471-2458-8-51
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发表时间：
2008-02-07
影响因子：
4.5
通讯作者：
Barreto, Mauricio L.
中科院分区：
文献类型：
--
作者：
Barreto, Florisneide R.;Teixeira, Maria Gloria;Costa, Maria da Conceicao N.;Carvalho, Marilia S.;Barreto, Mauricio L.
在各国发生的登革热的爆炸性流行刺激了对新方法的调查，以提高对这一问题的了解，并制定控制该疾病的新战略。这项研究的目的是评价1995年在萨尔瓦多市发生的第一次登革热流行的传播特点。1995年萨尔瓦多通报的登革热病例的流行病学图表和记录构成了数据来源。根据人口普查地区（空间单位）和流行病学周（时间单位）对该病病例进行地理参考。利用R-Project计算机软件，利用核密度估计识别空间扩散模式。在该市2006年的人口普查区域中，1995年有1 400例（70%）登革热登记病例，这些记录的空间分布表明，到1995年底，几乎整个城市都受到该病毒的影响，病例最集中发生在西部地区，由人口密度高的人口普查区域组成，与城市东部地区相比，主要是横向住宅。那里以垂直住宅建筑为主。在这项研究中发现的模式显示了大多数传染病常见的通过传染传播的经典过程的特征。有可能确定疾病的离心波是从流行病的中心发出的。我们的研究结果表明，如果存在一种更灵活的控制工具，能够在几天内迅速减少病媒生物数量或通过疫苗提高人群的群体免疫力，理论上可以在疫情中心周围采取控制行动，从而降低疾病在城市的发病率。这一发现强调需要进一步研究，以改进预防这种疾病的现有技术。
The explosive epidemics of dengue that have been occurring in various countries have stimulated investigation into new approaches to improve understanding of the problem and to develop new strategies for controlling the disease. The objective of this study was to evaluate the characteristics of diffusion of the first dengue epidemic that occurred in the city of Salvador in 1995. The epidemiological charts and records of notified cases of dengue in Salvador in 1995 constituted the source of data. The cases of the disease were georeferenced according to census areas (spatial units) and epidemiological weeks (temporal unit). Kernel density estimation was used to identify the pattern of spatial diffusion using the R-Project computer software program. Of the 2,006 census areas in the city, 1,400 (70%) registered cases of dengue in 1995 and the spatial distribution of these records revealed that by the end of 1995 practically the entire city had been affected by the virus, with the largest concentration of cases occurring in the western region, composed of census areas with a high population density and predominantly horizontal residences compared to the eastern region of the city, where there is a predominance of vertical residential buildings. The pattern found in this study shows the characteristics of the classic process of spreading by contagion that is common to most infectious diseases. It was possible to identify the epicenter of the epidemic from which centrifugal waves of the disease emanated. Our results suggest that, if a more agile control instrument existed that would be capable of rapidly reducing the vector population within a few days or of raising the group immunity of the population by means of a vaccine, it would theoretically be possible to adopt control actions around the epicenter of the epidemic and consequently reduce the incidence of the disease in the city. This finding emphasizes the need for further research to improve the technology available for the prevention of this disease.
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影响因子：
64.8
作者：
Cummings, DAT;Irizarry, RA;Burke, DS
通讯作者：
Burke, DS
DOI：
10.1590/s0037-86822007000200009
发表时间：
2007-04-01
影响因子：
2
作者：
Câmara, Fernando Portela;Theophilo, Regina Lúcia Gonçalves;Matos, Roberto Rodrigues C. de
通讯作者：
Matos, Roberto Rodrigues C. de
影响因子：
5.4
作者：
Gatrell, AC;Bailey, TC
通讯作者：
Bailey, TC
DOI：
10.4269/ajtmh.1977.26.337
发表时间：
1977-01-01
影响因子：
3.3
作者：
ROSEN, L
通讯作者：
ROSEN, L
影响因子：
2.7
作者：
Rotela, Camilo;Fouque, Florence;Scavuzzo, Carlos
通讯作者：
Scavuzzo, Carlos