Ribeiro Andressa F, Marques Gisela R A M, Voltolini Júlio C, Condino Maria Lúcia F
Superintendência de Controle de Endemias, São Paulo, Brasil.
Rev Saude Publica. 2006 Aug;40(4):671-6. doi: 10.1590/s0034-89102006000500017.
To describe the occurrence of autochthonous dengue cases according to sex, age, suspected infection site and its relation with climatic variables.
Autochthonous dengue cases reported in São Sebastião, Southern Brazil, from 2001 to 2002 and confirmed in laboratory were studied. Larval density was verified by three indexes: building, recipients and Breteau. The relationship between rainfall, temperature and number of cases was analyzed through Spearman's correlation using time lag.
The annual incidence coefficients for 2001 and 2002 were 80.3 and 211.1 per 10,000 inhabitants, respectively. Most dengue cases (n=1,091; 65%) were reported in the district's central area. Females (n=969; 60%) and the age groups 20 to 29 and 30 to 39 years old of both sexes were mostly affected. Significant associations were not observed between climatic variables and the number of dengue cases in the first month; however, this association became evident in the second month throughout the fourth month.
The association between the number of dengue cases and abiotic factors identified the time lag in which rain and temperature favored the occurrence of new cases. These aspects, associated to tourist vulnerability in the coastal area, promoted conditions for dengue occurrence. The urbanization without sanitary infrastructure possibly affected mosquito density and dengue incidence. Such factors may have contributed to mosquito dispersion and dissemination of different dengue serotypes.
根据性别、年龄、疑似感染部位描述本土登革热病例的发生情况及其与气候变量的关系。
对2001年至2002年在巴西南部圣塞巴斯蒂昂报告并经实验室确诊的本土登革热病例进行研究。通过建筑物、容器和布雷托指数这三个指标来核实幼虫密度。利用时间滞后，通过斯皮尔曼相关性分析降雨量、温度与病例数之间的关系。
2001年和2002年的年发病率系数分别为每10000居民80.3例和211.1例。大多数登革热病例（n = 1091；65%）报告于该地区的中心区域。女性（n = 969；60%）以及20至29岁和30至39岁的男女年龄组受影响最为严重。在第一个月，气候变量与登革热病例数之间未观察到显著关联；然而，这种关联在第二个月至第四个月变得明显。
登革热病例数与非生物因素之间的关联确定了降雨和温度有利于新病例发生的时间滞后。这些方面，再加上沿海地区游客的易感性，为登革热的发生创造了条件。没有卫生基础设施的城市化可能影响了蚊子密度和登革热发病率。这些因素可能有助于蚊子的扩散和不同登革热血清型的传播。
