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Objective@#To evaluate the effectiveness for the construction of "mosquito-free village" in Xuejia Village, Pujiang County, Zhejiang Province, so as to provide the guidance for the construction of "mosquito-free village" in other rural areas.@*Methods@#Density of adult mosquitoes in Xuejia Village was investigated using light trap method and density of larval mosquitoes was investigated using larval straw method from April to November each year. Totally 30 households of villagers were randomly selected, and their awareness rates of mosquito control knowledge, mosquito control behavior forming rates and satisfaction rates were surveyed through questionnaires. Investment during construction (from August 2016 to December 2018) and maintenance period (from 2019 to 2023) of "mosquito-free village" were investigated through data review and interviews. Long-term effects of "mosquito-free village" construction in Xuejia Village were evaluated in terms of mosquito density from 2016 to 2023, effectiveness of health education for villagers, satisfaction and investment.@*Results@#Compared with the year 2016, the densities of adult and larval mosquitoes in Xuejia Village were significantly decreased from 2017 to 2023. The average monthly density of adult mosquitoes in 2023 decreased by 98.34%, and the average monthly 100 household index of larval mosquitoes decreased by 98.45% compared to 2016. The average monthly density of adult mosquitoes from 2019 to 2023 was less than or equal to one mosquito per light trap in a night, and the average monthly 100 household index of larval mosquitoes was less than or equal to five places per 100 households. The awareness rate of mosquito control knowledge was 93.33%, the behavior forming rate was 86.67%, and the satisfaction rate was 90.00%. By December 2023, the total investment during construction and maintenance period was 450 thousand Yuan, with an average annual investment of 60.7 thousand Yuan and average annual investment of 206.61 Yuan per household. The average annual investment during maintenance period was 36.2 thousand Yuan, and the average annual investment per household was 109.70 Yuan.@*Conclusion@#The mosquito density, effectiveness of health education for villagers and satisfaction of "mosquito-free village" in Xuejia Village all meet the evaluation criteria of "mosquito-free village", and the investment is reasonable, making it suitable for promotion to other rural areas.
RESUMEN
Objeetive@#To learn the epidemic status of COVID-19 in some high-epidemic countries, so as to provide reference for prevention and control of imported COVID-19 in China. @*Methods@#We collected the data of all the countries who totally reported over ten thousand cases of COVID-19 by March 29, 2020, and analyzed the epidemic trend by using the incidence rate, the case fatality rate, the five-day moving average time dependent reproduction number (Rt) as well as the average daily increase rate. @*Results @#Spain, Switzerland, Italy, Germany, France, lran, UK, USA and China were inchuded in the analysis. Spain( 15.46/100 000), Switzerland(15.44/100 000) and Italy ( 15.30/100 000)ranked top three in the incidence rate of COVID-19. Italy (10.84%), Spain (7.88%) andlan (7.11%) ranked top three in the case atality rate. By March27, the values of five-day moving average Rt in USA, UK, Iran, Spain and France were all more than one. The average daily increase rate in China had changed negative since March 6. The average daily increase rates in the other eight countries ranged from 41.58% to 18.17%, and the trend was slow down from March 20 to 29, among which Germany, Switzerland and Italy had the largest decline of 35.60%, 29.76% and 25.56%, respectively @*Conclusions @#By March 29, the epidemie situation of COVID-19 in China was under controls; the situations in ltaly, Germany and Switzerland tended to be stable; while the situations in USA, UK, Iran, Spain and France maintained an upward tmend.