ISSN 1003-8280 CN 10-1522/R 中国疾病预防控制中心 主办
【Abstract】 Objective To know about the mosquito density in Beijing city and Olympic venues by questionnaire. Methods Seven districts and seven Olympic venues were chosen to implement questionnaire survey by stratified random sampling. Results According to survey in the indoor environment, 92.31% of the respondents thought there were only a few mosquitoes in Beijing city, and 96.02% of the respondents thought there were few mosquitoes in Olympic venues. For the outdoor environment, there were 77.81% of the respondents who considered few mosquitoes in Beijing and 97.26% of the respondents considered that few mosquitoes was in the Olympic venues. About 69.85% of the respondents thought there were fewer mosquitoes in 2008 than in 2007 in Beijing. There were 80.60% of the respondents considered Olympic venues were good. Conclusion The mosquito density in both the indoor and outdoor environment in Olympic venues was lower than that in Beijing city, and the mosquito density in 2008 was lower than that in 2007.
【Abstract】 Objective To know about the density and seasonal fluctuation of main vectors at National Stadium by the surveillance, develop and implement the special strategy and control, in order to avoid the harmfulness caused by vectors during the opening and closing ceremony of Olympic Games. Methods Night trapping method was used for the surveillance of rats, CO2 trapping lamp method for the adult mosquitoes, lava-spoon method and check-container method for larva, baited cage trapping method for the flies and paste catching method for cockroaches. The integrated method was used for the vector prevention and control such as rats, mosquitoes, flies and cockroaches. The control effect was evaluated by density surveillance and questionnaire. Results There were 84 spoons sampled from large-scale water, and the positive spoon was 0. A total of 46 containers were checked at the stadium, and no positive container was found. There was no response on the infestation of vectors at the opening and closing ceremony of the Olympic Games by questionnaires to 220 people, and nobody was bitten or annoyed by vectors. Conclusion The strategy and method of vector control especially at the opening and closing ceremony of Olympic Games were successful and effective, which not only provided the safeguard for the opening and closing ceremony but also realized the aim without vector harm.
【Abstract】 Objective To study the influence of main meteorological parameters on the mosquito density. Methods With the data of mosquito density from 2005 to 2007 provided by Beijing Center for Disease Control and Prevention and the meteorological data such as average temperature, average minimum temperature, average maximum temperature, rainfall, rainy days, sunshine time, relative humidity and average wind speed, a multiple stepwise regression would be made with statistical software SAS 9.0. Results The multiple regression co-linearity results showed there was strong linear relationship among average temperature,average minimum temperature and average minimum temperature. The multiple stepwise regression equation was y=0.533 97X2+0.078 14X7-2.673 29X8-2.232 56 (X2, X7 and X8 represented average minimum temperature, relative humidity and average wind speed, respectively). Conclusion The main meteorological parameters closely related to mosquito density were average minimum temperature, relative humidity and average wind speed. The order which affected mosquito density was in turn average minimum temperature, average wind speed and relative humidity