关键词: 登革热, 传播媒介, 白纹伊蚊, 监测

Abstract:

Objective Master the species, seasonal dynamics, and distribution of Aedes mosquito vectors, and incidence of dengue in Wanzhou district, to assess the risk of dengue fever, provide the basis for the prevention and control of dengue fever. Methods Monitoring the density of Aedes larva by Breteau index method, investigating the density of mosquito population by double stack method, analyzing the case data using the method of comparative analysis of epidemiology. Results There was 1 imported case of dengue fever in Wanzhou area in 2015, the incidence was 0.62/100 000, there was no case of epidemic spread due to the imported case. Monitoring the mosquito vectors density in 4 sites in the May through October in 2015, Aedes Breteau index fluctuated between 3.74-7.54. Fifteen mosquitoes were caught in 6 rounds of trapping with double stack method, of which 1 was the Anopheles sinensis, 14 were the Armigeres obturbans. The 6-round of trapping in the monitoring did not capture the vectors of dengue fever, the Aedes mosquito bite index was zero. Conclusion The human population flow in this area is frequent, there are many migrant workers in Burma, Guangdong, Yunnan and the other places, this is a high possibility of imported case, but a low risk of local outbreaks of dengue fever, suggesting to strengthen the monitoring to prevent epidemic.

Key words: Dengue fever, Vectors, Aedes albopictus, Surveillance